Muscles Flashcards
1
Q
Occipotofrontalis (Frontal Belly)
A
O: epicranial aponeurosis
I: skin superior to supraorbital margin
A: draws scalp anteriorly, raises eyebrows, wrinkles skin of forehead horizontally
2
Q
Occipitofrontalis (occipital belly)
A
O: occipital bone and mastoid process of temporal bone
I: epicranial aponeurosis
A: draws scalp posteriorly
I: Facial 7
3
Q
Obicularis Oris
A
O: muscle fibrosis surrounding opening of the mouth
I: skin at corner of the mouth
A: closes and protrudes lips, compresses lips against teeth, shapes lips for speech
I: Facial 7
4
Q
Zygomaticus Major
A
O: zygomatic bone
I: skin at angle of mouth and obicularis oris
A: draws angle of the mouth superiorly and laterally
I: Facial 7
5
Q
Zygomaticus Minor
A
O: zygomatic bone
I: upper lip
A: raises upper lip, exposing maxillary teeth
I: Facial 7
6
Q
Levator Labii Superiorus
A
O: superior infraorbital foramen to maxilla
I: skin at angle of mouth and obicularis oris
A: raises upper lip
I: Facial 7
7
Q
Depressor Labii Inferioris
A
O: mandible
I: skin of lower lip
A: depresses lower lip
I: Facial 7
8
Q
Depressor Anguli Oris
A
O: mandible
I: angle of mouth
A: draws angle of mouth laterally & inferiorly
I: Facial 7
9
Q
Levator Anguli Oris
A
O: inferior to infraorbital foramen
I: skin of lower lip and obicularis oris
A: draws angle of mouth laterally & superiorly
I: Facial 7
10
Q
Buccinator
A
O: alveolar process of maxilla & mandible and pterygomadibular raphe
I: obicularis oris
A: presses cheeks against teeth, draws corner of mouth laterally
I: Facial 7
11
Q
Risorius
A
O: fascia over parotid gland
I: skkin at angle of mouth
A: draws angle of mouth laterally
I: Facial 7
12
Q
Mentalis
A
O: mandible
I: skin of chin
A: elevates & protrudes lower lip and pulls skin of chin up
I: Facial 7
13
Q
Mentalis
A
O: mandible
I: skin of chin
A: elevates & protrudes lower lip and pulls skin of chin up
I: Facial 7
14
Q
Mentalis
A
O: mandible
I: skin of chin
A: elevates & protrudes lower lip and pulls skin of chin up
I: Facial 7
14
Q
Mentalis
A
O: mandible
I: skin of chin
A: elevates & protrudes lower lip and pulls skin of chin up
I: Facial 7
15
Q
Platysma
A
O: fascia over deltoid and pectoralis major muscles
I: madible, blends with muscles around angle of mouth, and skkin of lower face
A: draws outer part of lower lip inferiorly and posteriorly, depresses mandible
I: Facial 7
16
Q
Platysma
A
O: fascia over deltoid and pectoralis major muscles
I: madible, blends with muscles around angle of mouth, and skkin of lower face
A: draws outer part of lower lip inferiorly and posteriorly, depresses mandible
I: Facial 7
17
Q
Platysma
A
O: fascia over deltoid and pectoralis major muscles
I: madible, blends with muscles around angle of mouth, and skkin of lower face
A: draws outer part of lower lip inferiorly and posteriorly, depresses mandible
I: Facial 7
17
Q
Platysma
A
O: fascia over deltoid and pectoralis major muscles
I: madible, blends with muscles around angle of mouth, and skkin of lower face
A: draws outer part of lower lip inferiorly and posteriorly, depresses mandible
I: Facial 7
18
Q
Orbicularis Oculi
A
O: medial wall of orbit
I: circular path aorund orbit
A: closes eye
I: Facial 7
19
Q
Orbicularis Oculi
A
O: medial wall of orbit
I: circular path aorund orbit
A: closes eye
I: Facial 7
20
Q
Orbicularis Oculi
A
O: medial wall of orbit
I: circular path aorund orbit
A: closes eye
I: Facial 7
21
Q
Orbicularis Oculi
A
O: medial wall of orbit
I: circular path aorund orbit
A: closes eye
I: Facial 7
22
Q
Corrugator Supercilii
A
O: medial end of superciliary arch of frontal bone
I: skin of eyebrow
A: draws eyebrow inferiorly and wrinkles skin of forehead vertically
I: Facial 7
23
Corrugator Supercilii
O: medial end of superciliary arch of frontal bone
I: skin of eyebrow
A: draws eyebrow inferiorly and wrinkles skin of forehead vertically
I: Facial 7
23
Corrugator Supercilii
O: medial end of superciliary arch of frontal bone
I: skin of eyebrow
A: draws eyebrow inferiorly and wrinkles skin of forehead vertically
I: Facial 7
25
Corrugator Supercilii
O: medial end of superciliary arch of frontal bone
I: skin of eyebrow
A: draws eyebrow inferiorly and wrinkles skin of forehead vertically
I: Facial 7
26
Superior Rectus
O: common tendinous ring
I: superior and central part of eyeballs
A: moves eyeball superiorly, medially, and rotates them medially
I: Ocularmotor 3
27
Superior Rectus
O: common tendinous ring
I: superior and central part of eyeballs
A: moves eyeball superiorly, medially, and rotates them medially
I: Ocularmotor 3
27
Superior Rectus
O: common tendinous ring
I: superior and central part of eyeballs
A: moves eyeball superiorly, medially, and rotates them medially
I: Ocularmotor 3
28
Superior Rectus
O: common tendinous ring
I: superior and central part of eyeballs
A: moves eyeball superiorly, medially, and rotates them medially
I: Ocularmotor 3
29
Inferior Rectus
O: common tendinous ring
I: inferior & central part of eyeball
A: moves eyeball inferiorly & medially, rotates medially
I: Ocularmotor 3
30
Inferior Rectus
O: common tendinous ring
I: inferior & central part of eyeball
A: moves eyeball inferiorly & medially, rotates medially
I: Ocularmotor 3
31
Inferior Rectus
O: common tendinous ring
I: inferior & central part of eyeball
A: moves eyeball inferiorly & medially, rotates medially
I: Ocularmotor 3
33
Inferior Rectus
O: common tendinous ring
I: inferior & central part of eyeball
A: moves eyeball inferiorly & medially, rotates medially
I: Ocularmotor 3
34
Lateral Rectus
O: common tendinous ring
I: lateral side of eyeball
A: moves eyeball laterally
I: Abducens 6
34
Lateral Rectus
O: common tendinous ring
I: lateral side of eyeball
A: moves eyeball laterally
I: Abducens 6
35
Lateral Rectus
O: common tendinous ring
I: lateral side of eyeball
A: moves eyeball laterally
I: Abducens 6
37
Lateral Rectus
O: common tendinous ring
I: lateral side of eyeball
A: moves eyeball laterally
I: Abducens 6
38
Medial Rectus
O: common tendinous ring
I: medial side of eyeball
A: moves eyeball medially
I: Ocularmotor 3
40
Medial Rectus
O: common tendinous ring
I: medial side of eyeball
A: moves eyeball medially
I: Ocularmotor 3
40
Medial Rectus
O: common tendinous ring
I: medial side of eyeball
A: moves eyeball medially
I: Ocularmotor 3
41
Medial Rectus
O: common tendinous ring
I: medial side of eyeball
A: moves eyeball medially
I: Ocularmotor 3
42
Superior Oblique
O: sphenoid bone, superior & medial to common tednious ring in orbit
I: eyeball between superior & lateral recti
A: moves eyeball inferiorly and laterally rotates medially
I: Trochlear 4
43
Superior Oblique
O: sphenoid bone, superior & medial to common tednious ring in orbit
I: eyeball between superior & lateral recti
A: moves eyeball inferiorly and laterally rotates medially
I: Trochlear 4
44
Superior Oblique
O: sphenoid bone, superior & medial to common tednious ring in orbit
I: eyeball between superior & lateral recti
A: moves eyeball inferiorly and laterally rotates medially
I: Trochlear 4
46
Superior Oblique
O: sphenoid bone, superior & medial to common tednious ring in orbit
I: eyeball between superior & lateral recti
A: moves eyeball inferiorly and laterally rotates medially
I: Trochlear 4
47
Inferior Oblique
O: maxilla in floor of orbit
I: eyeballs between inferior and lateral recti
A: moves eyeball superiorly & laterally, rotates laterally
I: Ocularmotor 3
47
Inferior Oblique
O: maxilla in floor of orbit
I: eyeballs between inferior and lateral recti
A: moves eyeball superiorly & laterally, rotates laterally
I: Ocularmotor 3
48
Inferior Oblique
O: maxilla in floor of orbit
I: eyeballs between inferior and lateral recti
A: moves eyeball superiorly & laterally, rotates laterally
I: Ocularmotor 3
50
Inferior Oblique
O: maxilla in floor of orbit
I: eyeballs between inferior and lateral recti
A: moves eyeball superiorly & laterally, rotates laterally
I: Ocularmotor 3
51
Levator Palpebrae Superioris
O: roof of orbit
I: skin & tarsal plate of upper eyelids
A: elevates upper eyelids
I: Ocularmotor 3
52
Levator Palpebrae Superioris
O: roof of orbit
I: skin & tarsal plate of upper eyelids
A: elevates upper eyelids
I: Ocularmotor 3
53
Levator Palpebrae Superioris
O: roof of orbit
I: skin & tarsal plate of upper eyelids
A: elevates upper eyelids
I: Ocularmotor 3
55
Masseter
O: maxilla and zygomatic arch
I: angle and ramus of the madible
A: elevates madible
I: mandibular division of the trigeminal 5
55
Levator Palpebrae Superioris
O: roof of orbit
I: skin & tarsal plate of upper eyelids
A: elevates upper eyelids
I: Ocularmotor 3
56
Masseter
O: maxilla and zygomatic arch
I: angle and ramus of the madible
A: elevates madible
I: mandibular division of the trigeminal 5
57
Masseter
O: maxilla and zygomatic arch
I: angle and ramus of the madible
A: elevates madible
I: mandibular division of the trigeminal 5
58
Masseter
O: maxilla and zygomatic arch
I: angle and ramus of the madible
A: elevates madible
I: mandibular division of the trigeminal 5
60
Temporalis
O: temporal bone
I: coronoid process and ramus of mandible
A: elevates and retracts mandible
I: mandibular division of trigeminal 5
60
Temporalis
O: temporal bone
I: coronoid process and ramus of mandible
A: elevates and retracts mandible
I: mandibular division of trigeminal 5
62
Temporalis
O: temporal bone
I: coronoid process and ramus of mandible
A: elevates and retracts mandible
I: mandibular division of trigeminal 5
63
Temporalis
O: temporal bone
I: coronoid process and ramus of mandible
A: elevates and retracts mandible
I: mandibular division of trigeminal 5
64
Medial Pteygoid
O: medial surface of lateral portion of pterygoid process of sphneoid bone
I: angle & ramus of mandible
A: elevates & protrudes mandible and moves mandible side to side
I: mandibular division of trigeminal 5
65
Medial Pteygoid
O: medial surface of lateral portion of pterygoid process of sphneoid bone
I: angle & ramus of mandible
A: elevates & protrudes mandible and moves mandible side to side
I: mandibular division of trigeminal 5
66
Medial Pteygoid
O: medial surface of lateral portion of pterygoid process of sphneoid bone
I: angle & ramus of mandible
A: elevates & protrudes mandible and moves mandible side to side
I: mandibular division of trigeminal 5
67
Medial Pteygoid
O: medial surface of lateral portion of pterygoid process of sphneoid bone
I: angle & ramus of mandible
A: elevates & protrudes mandible and moves mandible side to side
I: mandibular division of trigeminal 5
68
Lateral Pterygoid
O: greater wing and lateral surface of lateral portion of pterygoid process of sphenoid bone
I: condyle of mandible, TMJ joint
A: protracts mandible, depresses mandible, moves mandible side to side
I: mandibular division of trigeminal 5
69
Lateral Pterygoid
O: greater wing and lateral surface of lateral portion of pterygoid process of sphenoid bone
I: condyle of mandible, TMJ joint
A: protracts mandible, depresses mandible, moves mandible side to side
I: mandibular division of trigeminal 5
70
Lateral Pterygoid
O: greater wing and lateral surface of lateral portion of pterygoid process of sphenoid bone
I: condyle of mandible, TMJ joint
A: protracts mandible, depresses mandible, moves mandible side to side
I: mandibular division of trigeminal 5
71
Lateral Pterygoid
O: greater wing and lateral surface of lateral portion of pterygoid process of sphenoid bone
I: condyle of mandible, TMJ joint
A: protracts mandible, depresses mandible, moves mandible side to side
I: mandibular division of trigeminal 5
72
Genioglossus
O: mandible
I: undersurface of tongue and hyoid bone
A: depresses tongue and thrusts it forward
I: hypoglossal 12
73
Genioglossus
O: mandible
I: undersurface of tongue and hyoid bone
A: depresses tongue and thrusts it forward
I: hypoglossal 12
74
Genioglossus
O: mandible
I: undersurface of tongue and hyoid bone
A: depresses tongue and thrusts it forward
I: hypoglossal 12
75
Genioglossus
O: mandible
I: undersurface of tongue and hyoid bone
A: depresses tongue and thrusts it forward
I: hypoglossal 12
76
Styloglossus
O: styloid process of temporal bone
I: side and undersurface of tongue
A: elevates tongue and draws posteriorly
I: hypoglossal 12
77
Styloglossus
O: styloid process of temporal bone
I: side and undersurface of tongue
A: elevates tongue and draws posteriorly
I: hypoglossal 12
78
Styloglossus
O: styloid process of temporal bone
I: side and undersurface of tongue
A: elevates tongue and draws posteriorly
I: hypoglossal 12
79
Styloglossus
O: styloid process of temporal bone
I: side and undersurface of tongue
A: elevates tongue and draws posteriorly
I: hypoglossal 12
80
Hyoglossal
O: greater horn and body of hyoid bone
I: side of tongue
A: depresses tongue, draws down its sides
I: hypoglossal 12
81
Hyoglossal
O: greater horn and body of hyoid bone
I: side of tongue
A: depresses tongue, draws down its sides
I: hypoglossal 12
82
Hyoglossal
O: greater horn and body of hyoid bone
I: side of tongue
A: depresses tongue, draws down its sides
I: hypoglossal 12
83
Hyoglossal
O: greater horn and body of hyoid bone
I: side of tongue
A: depresses tongue, draws down its sides
I: hypoglossal 12
84
Palatoglossus
O: anterior surface of soft palate
I: sude of tongue
A: elevates posterior portion of tongue and draws soft palate down on tongue
I: pharyngeal plexus, axons from vagus 10
85
Palatoglossus
O: anterior surface of soft palate
I: sude of tongue
A: elevates posterior portion of tongue and draws soft palate down on tongue
I: pharyngeal plexus, axons from vagus 10
86
Palatoglossus
O: anterior surface of soft palate
I: sude of tongue
A: elevates posterior portion of tongue and draws soft palate down on tongue
I: pharyngeal plexus, axons from vagus 10
87
Palatoglossus
O: anterior surface of soft palate
I: sude of tongue
A: elevates posterior portion of tongue and draws soft palate down on tongue
I: pharyngeal plexus, axons from vagus 10
88
Digastric
O: anterior belly from inner side of inferior border of mandible; posterior belly from temporal bone
I: body of hyoid bone via intermediate tendon
A: elevates hyoid bone and draws it posteriorly
I: anterior belly-mandibular division of trigeminal
posterior belly; facial
89
Digastric
O: anterior belly from inner side of inferior border of mandible; posterior belly from temporal bone
I: body of hyoid bone via intermediate tendon
A: elevates hyoid bone and draws it posteriorly
I: anterior belly-mandibular division of trigeminal
posterior belly; facial
90
Digastric
O: anterior belly from inner side of inferior border of mandible; posterior belly from temporal bone
I: body of hyoid bone via intermediate tendon
A: elevates hyoid bone and draws it posteriorly
I: anterior belly-mandibular division of trigeminal
posterior belly; facial
91
Digastric
O: anterior belly from inner side of inferior border of mandible; posterior belly from temporal bone
I: body of hyoid bone via intermediate tendon
A: elevates hyoid bone and draws it posteriorly
I: anterior belly-mandibular division of trigeminal
posterior belly; facial
92
Stylohyoid
O: styloid process of temporal bone
I: body of hyoid bone
A: elevates hyoid bone and draws it posteriorly
I: Facial 7
93
Stylohyoid
O: styloid process of temporal bone
I: body of hyoid bone
A: elevates hyoid bone and draws it posteriorly
I: Facial 7
94
Stylohyoid
O: styloid process of temporal bone
I: body of hyoid bone
A: elevates hyoid bone and draws it posteriorly
I: Facial 7
95
Stylohyoid
O: styloid process of temporal bone
I: body of hyoid bone
A: elevates hyoid bone and draws it posteriorly
I: Facial 7
96
Mylohyoid
O: inner surface of mandible
I: body of hyoid bone
A: elevates hyoid bone and floor of mouth and depresses mandible
I: mandibular division of trigeminal 5
97
Mylohyoid
O: inner surface of mandible
I: body of hyoid bone
A: elevates hyoid bone and floor of mouth and depresses mandible
I: mandibular division of trigeminal 5
98
Mylohyoid
O: inner surface of mandible
I: body of hyoid bone
A: elevates hyoid bone and floor of mouth and depresses mandible
I: mandibular division of trigeminal 5
99
Mylohyoid
O: inner surface of mandible
I: body of hyoid bone
A: elevates hyoid bone and floor of mouth and depresses mandible
I: mandibular division of trigeminal 5
100
Geniohyoid
O: inner surface of mandible
I: body of hyoid bone
A: elevates hyoid bone, draws HB and tongue anteriorly; depresses mandible
I: 1st cervical spinal C1
101
Geniohyoid
O: inner surface of mandible
I: body of hyoid bone
A: elevates hyoid bone, draws HB and tongue anteriorly; depresses mandible
I: 1st cervical spinal C1
102
Geniohyoid
O: inner surface of mandible
I: body of hyoid bone
A: elevates hyoid bone, draws HB and tongue anteriorly; depresses mandible
I: 1st cervical spinal C1
103
Geniohyoid
O: inner surface of mandible
I: body of hyoid bone
A: elevates hyoid bone, draws HB and tongue anteriorly; depresses mandible
I: 1st cervical spinal C1
104
Omohyoid
O: superior border of scapula and superior transverse ligament
I: body of HB
A: depresses HB
I: branches of spinal nerves C1-C3
105
Omohyoid
O: superior border of scapula and superior transverse ligament
I: body of HB
A: depresses HB
I: branches of spinal nerves C1-C3
106
Omohyoid
O: superior border of scapula and superior transverse ligament
I: body of HB
A: depresses HB
I: branches of spinal nerves C1-C3
107
Omohyoid
O: superior border of scapula and superior transverse ligament
I: body of HB
A: depresses HB
I: branches of spinal nerves C1-C3
108
Sternohyoid
O: medial enfd of clavicle and manubruim of sternum
I: body of hyoid bone
A: depresses hyoid bone
I: branches of spinal nerves C1-C3
109
Sternohyoid
O: medial enfd of clavicle and manubruim of sternum
I: body of hyoid bone
A: depresses hyoid bone
I: branches of spinal nerves C1-C3
110
Sternohyoid
O: medial enfd of clavicle and manubruim of sternum
I: body of hyoid bone
A: depresses hyoid bone
I: branches of spinal nerves C1-C3
111
Sternohyoid
O: medial enfd of clavicle and manubruim of sternum
I: body of hyoid bone
A: depresses hyoid bone
I: branches of spinal nerves C1-C3
112
Sternothyroid
O: manubruim of sternum
I: thyroid cartilage of larynx
A: depresses thyroid cartilage of larynx
I: branches of spinal nerves C1-C3
113
Sternothyroid
O: manubruim of sternum
I: thyroid cartilage of larynx
A: depresses thyroid cartilage of larynx
I: branches of spinal nerves C1-C3
114
Sternothyroid
O: manubruim of sternum
I: thyroid cartilage of larynx
A: depresses thyroid cartilage of larynx
I: branches of spinal nerves C1-C3
115
Sternothyroid
O: manubruim of sternum
I: thyroid cartilage of larynx
A: depresses thyroid cartilage of larynx
I: branches of spinal nerves C1-C3
116
Thyrohyoid
O: thyroid cartilage of larynx
I: greater horn of hyoid bone
A: depresses hyoid bone
I: branches of spinal nerves C1-C2 and descending hypoglossal 12
117
Thyrohyoid
O: thyroid cartilage of larynx
I: greater horn of hyoid bone
A: depresses hyoid bone
I: branches of spinal nerves C1-C2 and descending hypoglossal 12
118
Thyrohyoid
O: thyroid cartilage of larynx
I: greater horn of hyoid bone
A: depresses hyoid bone
I: branches of spinal nerves C1-C2 and descending hypoglossal 12
119
Thyrohyoid
O: thyroid cartilage of larynx
I: greater horn of hyoid bone
A: depresses hyoid bone
I: branches of spinal nerves C1-C2 and descending hypoglossal 12
120
Sternocleidomastoid
O: sternal head, manubruim of sternum, clavicular head, medial 3rd of the clavicle
I: mastoid process of termporal bone and lateral half of superior nuchal line of occipital bone
A: flex cervical portion of spine, laterally flex neck, laterally rotate head side to side
I: Accessory 11, C2, C3
121
Sternocleidomastoid
O: sternal head, manubruim of sternum, clavicular head, medial 3rd of the clavicle
I: mastoid process of termporal bone and lateral half of superior nuchal line of occipital bone
A: flex cervical portion of spine, laterally flex neck, laterally rotate head side to side
I: Accessory 11, C2, C3
122
Sternocleidomastoid
O: sternal head, manubruim of sternum, clavicular head, medial 3rd of the clavicle
I: mastoid process of termporal bone and lateral half of superior nuchal line of occipital bone
A: flex cervical portion of spine, laterally flex neck, laterally rotate head side to side
I: Accessory 11, C2, C3
123
Sternocleidomastoid
O: sternal head, manubruim of sternum, clavicular head, medial 3rd of the clavicle
I: mastoid process of termporal bone and lateral half of superior nuchal line of occipital bone
A: flex cervical portion of spine, laterally flex neck, laterally rotate head side to side
I: Accessory 11, C2, C3
124
Semispinalis Capitis
O: articular process of C4-C6 and -transverse processes of C7-T7
I: occipital bone between superior & inferior nuchal laws
A: extend head and vertebral column, rotate head side to side
I: cervical spinal nerves
125
Semispinalis Capitis
O: articular process of C4-C6 and -transverse processes of C7-T7
I: occipital bone between superior & inferior nuchal laws
A: extend head and vertebral column, rotate head side to side
I: cervical spinal nerves
126
Semispinalis Capitis
O: articular process of C4-C6 and -transverse processes of C7-T7
I: occipital bone between superior & inferior nuchal laws
A: extend head and vertebral column, rotate head side to side
I: cervical spinal nerves
127
Semispinalis Capitis
O: articular process of C4-C6 and -transverse processes of C7-T7
I: occipital bone between superior & inferior nuchal laws
A: extend head and vertebral column, rotate head side to side
I: cervical spinal nerves
128
Splenius Capitis
O: ligamentum nuchae and spinous procecsses of C7-T4
I: occipital bone and mastoid process of temporal bone
A: extend head, rotate side head to head
I: cervical spinal nerves
129
Splenius Capitis
O: ligamentum nuchae and spinous procecsses of C7-T4
I: occipital bone and mastoid process of temporal bone
A: extend head, rotate side head to head
I: cervical spinal nerves
130
Splenius Capitis
O: ligamentum nuchae and spinous procecsses of C7-T4
I: occipital bone and mastoid process of temporal bone
A: extend head, rotate side head to head
I: cervical spinal nerves
131
Splenius Capitis
O: ligamentum nuchae and spinous procecsses of C7-T4
I: occipital bone and mastoid process of temporal bone
A: extend head, rotate side head to head
I: cervical spinal nerves
132
Mentalis
O: mandible
I: skin of chin
A: elevates & protrudes lower lip and pulls skin of chin up
I: Facial 7
133
Platysma
O: fascia over deltoid and pectoralis major muscles
I: madible, blends with muscles around angle of mouth, and skkin of lower face
A: draws outer part of lower lip inferiorly and posteriorly, depresses mandible
I: Facial 7
134
Orbicularis Oculi
O: medial wall of orbit
I: circular path aorund orbit
A: closes eye
I: Facial 7
135
Corrugator Supercilii
O: medial end of superciliary arch of frontal bone
I: skin of eyebrow
A: draws eyebrow inferiorly and wrinkles skin of forehead vertically
I: Facial 7
136
Superior Rectus
O: common tendinous ring
I: superior and central part of eyeballs
A: moves eyeball superiorly, medially, and rotates them medially
I: Ocularmotor 3
137
Inferior Rectus
O: common tendinous ring
I: inferior & central part of eyeball
A: moves eyeball inferiorly & medially, rotates medially
I: Ocularmotor 3
138
Lateral Rectus
O: common tendinous ring
I: lateral side of eyeball
A: moves eyeball laterally
I: Abducens 6
139
Medial Rectus
O: common tendinous ring
I: medial side of eyeball
A: moves eyeball medially
I: Ocularmotor 3
140
Superior Oblique
O: sphenoid bone, superior & medial to common tednious ring in orbit
I: eyeball between superior & lateral recti
A: moves eyeball inferiorly and laterally rotates medially
I: Trochlear 4
141
Inferior Oblique
O: maxilla in floor of orbit
I: eyeballs between inferior and lateral recti
A: moves eyeball superiorly & laterally, rotates laterally
I: Ocularmotor 3
142
Levator Palpebrae Superioris
O: roof of orbit
I: skin & tarsal plate of upper eyelids
A: elevates upper eyelids
I: Ocularmotor 3
143
Masseter
O: maxilla and zygomatic arch
I: angle and ramus of the madible
A: elevates madible
I: mandibular division of the trigeminal 5
144
Temporalis
O: temporal bone
I: coronoid process and ramus of mandible
A: elevates and retracts mandible
I: mandibular division of trigeminal 5
145
Medial Pteygoid
O: medial surface of lateral portion of pterygoid process of sphneoid bone
I: angle & ramus of mandible
A: elevates & protrudes mandible and moves mandible side to side
I: mandibular division of trigeminal 5
146
Lateral Pterygoid
O: greater wing and lateral surface of lateral portion of pterygoid process of sphenoid bone
I: condyle of mandible, TMJ joint
A: protracts mandible, depresses mandible, moves mandible side to side
I: mandibular division of trigeminal 5
147
Genioglossus
O: mandible
I: undersurface of tongue and hyoid bone
A: depresses tongue and thrusts it forward
I: hypoglossal 12
148
Styloglossus
O: styloid process of temporal bone
I: side and undersurface of tongue
A: elevates tongue and draws posteriorly
I: hypoglossal 12
149
Hyoglossal
O: greater horn and body of hyoid bone
I: side of tongue
A: depresses tongue, draws down its sides
I: hypoglossal 12
150
Palatoglossus
O: anterior surface of soft palate
I: sude of tongue
A: elevates posterior portion of tongue and draws soft palate down on tongue
I: pharyngeal plexus, axons from vagus 10
151
Digastric
O: anterior belly from inner side of inferior border of mandible; posterior belly from temporal bone
I: body of hyoid bone via intermediate tendon
A: elevates hyoid bone and draws it posteriorly
I: anterior belly-mandibular division of trigeminal
posterior belly; facial
152
Stylohyoid
O: styloid process of temporal bone
I: body of hyoid bone
A: elevates hyoid bone and draws it posteriorly
I: Facial 7
153
Mylohyoid
O: inner surface of mandible
I: body of hyoid bone
A: elevates hyoid bone and floor of mouth and depresses mandible
I: mandibular division of trigeminal 5
154
Geniohyoid
O: inner surface of mandible
I: body of hyoid bone
A: elevates hyoid bone, draws HB and tongue anteriorly; depresses mandible
I: 1st cervical spinal C1
155
Omohyoid
O: superior border of scapula and superior transverse ligament
I: body of HB
A: depresses HB
I: branches of spinal nerves C1-C3
156
Sternohyoid
O: medial enfd of clavicle and manubruim of sternum
I: body of hyoid bone
A: depresses hyoid bone
I: branches of spinal nerves C1-C3
157
Sternothyroid
O: manubruim of sternum
I: thyroid cartilage of larynx
A: depresses thyroid cartilage of larynx
I: branches of spinal nerves C1-C3
158
Thyrohyoid
O: thyroid cartilage of larynx
I: greater horn of hyoid bone
A: depresses hyoid bone
I: branches of spinal nerves C1-C2 and descending hypoglossal 12
159
Sternocleidomastoid
O: sternal head, manubruim of sternum, clavicular head, medial 3rd of the clavicle
I: mastoid process of termporal bone and lateral half of superior nuchal line of occipital bone
A: flex cervical portion of spine, laterally flex neck, laterally rotate head side to side
I: Accessory 11, C2, C3
160
Semispinalis Capitis
O: articular process of C4-C6 and -transverse processes of C7-T7
I: occipital bone between superior & inferior nuchal laws
A: extend head and vertebral column, rotate head side to side
I: cervical spinal nerves
161
Splenius Capitis
O: ligamentum nuchae and spinous procecsses of C7-T4
I: occipital bone and mastoid process of temporal bone
A: extend head, rotate side head to head
I: cervical spinal nerves
162
Longissimus Capitis
O: Articular process of T1-T4
I: Mastoid process of temporal bone
A: Acting together; extend head and vertebral column. Acting singly; laterlaly flex and rotate head to same sidde as contracting muscle
I: Cervical spinal nerves
163
Spinalis Capitis
O: Often absent or very samll; arises with semispinalis capitis
I: occipital bone
A: extends head and vertebral column
I: cervical spinal fluid
164
Rectus Abdominus
O: pubic crest and pubic symphasis
I: cartilage of ribs 5-7 and xiphoid process
A: flexes vertebral column, compresses abdomen
I: thoracic spinal nerves T7-T12
165
External Oblique
O: ribs 5-12
I: iliac crest and linea alba
A: acting together; compress abdomen and flex vertebral column. acting singly; laterally flex vertebral column
I: thoracic spinal nerves T7-T12 and the iliohypogastric nerve
166
Internal Oblique
O: iliac crest, inguinal ligament and thoracolumbar fascia
I: cartilage of ribs and linea alba
A: acting together; compress abdomen and flex vertebral column. acting singly; laterally flex vertebral column
I: thoracic spinal nerves T8-T12, iliohypogastric nerve, ilioinguinal nerve
167
Transversus Abdominus
O: iliac crest, inguinal ligament, lumbar fascia, cartilages of ribs 5-10
I: xiphoid process, linea alba, pubis
A: compresses abdomen
I: thoracic spinal nerves T8-T12, iliohypogastric nerve, ilioinguinal nerve
168
Quadratus Lumborum
O: iliac crest, iliolumbar ligament
I: inferior border of rib 12 and L1-L4
A: acting together; pull 12th ribs inferiorly during exhalation/inhalation. acting singly; laterally flex VC
I: thoracic spinal nerves T12 and lumbar spinal nerves L1-L3 or L1-L4
169
Diaphragm
O: xiphoid process of the sternum, costal cartilages and adjacent protions of inferior 6 ribs, lumbar vertabrae and their intervetebral discs
I: central tendon
A: allows for inhalation and exhalation
I: phrenic nerve, which contains axons from cervical spinal nerves C3-C5
170
External Intercostals
O: inferior border of rib above
I: superior border of rib below
A: elevates ribs to create inhalation; depresses ribs to create exhalation
I: thoracic spinal nerves T2-T12
171
Internal Intercostals
O: superior border of rib below
I: inferior border of rib above
A: draws adjacent ribs together for exhalation
I: thoracic spinal nerves T2-T12
172
Levator Ani (Pubococcygeus)
O: pubis and ischial spine
I: coccyx, urethra, anal canal, perineal body of perineum
A: supports and maintains postion of pelvic viscera, resists increased pressure in forced exhalation, constricts anus, urethra, and vagina
I: sacral spinal nerves S2-S4
173
Levator Ani (Iliococcygeus)
O: ischial spine
I: coccyx
A:supports and maintains postion of pelvic viscera, resists increased pressure in forced exhalation, constricts anus, urethra, and vagina
I: sacral spinal nerves S2-S4
174
Ischiococcygeus
O: ischial spine
I: lower sacrum and upper coccyx
A: supports and maintains postion of pelvic viscera, resists increased pressure in forced exhalation, pulls coccyx anteriorly following defacation or childbirth
I: sacral spinal nerves S4-S5
175
Superficial Transverse Perineal
O: ischial tuberosity
I: perineal body of the perineum
A: stabalizes perineal body of perineum
I: perineal branch of pudendal nerve of sacral plexus
176
Bulbospongiosis
O: perineal body of perineum
I: perineal membrane of deep muscles of perineum, corpius spongiosum of penis, deep fascia on dorsum of penis, pubic arch and root of dorsum of clitoris is female
A: helps expel urine during urination, helps propel semen, assists in erection, constricts vaginal orifice
177
Ischiocavernosus
O: ischial tuberosity and ischial and pubic rami
I: corpora cavernosa of penis in male and clitoris in female and pubic symphasis
A: maintains erection
I: perineal branch of pudendal nerve of sacral plexus
178
Deep Transverse Perineal
O: ischial ramis
I: perineal body of perineum
A: helps expel last drops of urine and semen
I: perineal branch of pudendal nerve of sacral plexus
179
External Urethral Sphincter
O: ischial and pubic rami
I: median raphe in male and vaginal wall in female
A: helps expel last drops of urine and semen
I: sacral spinal nerve S4 and inferior rectal branch of pudendal nerve
180
Compressor Urethrae
O: ischiopubic ramus
I: blends with partner on other side anterior to urethra
A: serves as accessory sphincter to urethra
I: perineal branch of pudendal nerve of sacral plexus
181
Sphincter Urethrovaginalis
O: perineal body
I: blends with partner on other side anterior to urethra
A: serves as accessory sphincter of urethra and facilitates closing of the vagina
I: perineal branch of pudendal nerve of sacral plexus
182
External Anal Sphincter
O: ano
