muscles Flashcards
1
Q
Function and attachment of buccinator
A
attachments- from alveolar processes of the maxilla & mandible, pterygoid hamulus & pterygomandibular raphe to the buccal angle function- compresses cheek
2
Q
Innervation of buccinator
A
facial n.
3
Q
Blood supply of buccinator
A
facial & buccal a.
4
Q
Function and attachment of depressor anguli oris
A
attachments- from mandible to buccal angle function- depresses buccal angle laterally
5
Q
Innervation of depressor anguli oris
A
facial n
6
Q
Blood supply of depressor anguli oris
A
inferior labial & mental a.
7
Q
Function and attachment of depressor labii inferioris
A
attachments- from lower oblique line of mandible to skin & mucosa of lower lip function- draws lower lip downward
8
Q
Innervation of depressor labii inferioris
A
facial n.
9
Q
Blood supply of depressor labii inferioris
A
inferior labial & mental a.
10
Q
Function and attachment of frontalis
A
attachments- from the superficial fascia of the eyebrows to the epicranial aponeurosis function- protracts the scalp or elevates eyebrows & nose
11
Q
Innervation of frontalis
A
facial n.
12
Q
Blood supply of frontalis
A
superficial temporal, supraorbital & supratrochlear a.
13
Q
Function and attachment of levator anguli oris
A
attachments- from canine fossa of maxilla to angle of mouth function- raises angle of mouth
14
Q
Innervation of levator anguli oris
A
facial n.
15
Q
Blood supply of levator anguli oris
A
facial, superior labial & infraorbital a.
16
Q
Function and attachment of levator labii superioris
A
attachments- from the infraorbital orbital margin to the lateral aspect of the upper lip function- raises & everts upper lip
17
Q
Innervation of levator labii superioris
A
facial n.
18
Q
Blood supply of levator labii superioris
A
facial, angular & infraorbital a.
19
Q
Function and attachment of mentalis
A
attachments- from incisive fossa of mandible to skin of chin function- raises lower lip
20
Q
Innervation of mentalis
A
facial n.
21
Q
Blood supply of mentalis
A
inferior labial & mental a.
22
Q
Function and attachment of nasalis
A
attachments- from the maxilla lateral & inferior to the nasal notch to the bridge & ala of the nose function- transverse fibers compress & alar fibers widen the nasal aperature
23
Q
Innervation of nasalis
A
facial n. (buccal branch)
24
Q
Blood supply of nasalis
A
lateral nasal, angular & infraorbital a.
25
Function and attachment of orbicularis oculi
attachments- from orbital margin & medial palpebral lig. to superficial fascia of the eyelid function- palpebral sphinchter
26
Innervation of orbicularis oculi
temporal & zygomatic branches of the facial n.
27
Blood supply of orbicularis oculi
superficial temporal, lacrimal, supraorbital, supratrochlear, dorsal nasal,
28
Function and attachment of orbicularis oris
attachments- from the angle of the mouth to the superficial fascia of the upper lip. function- oral sphinchter
29
Innervation of orbicularis oris
facial n.
30
Blood supply of orbicularis oris
facial, inferior & superior labial, infraorbital & mental a.
31
Function and attachment of platysma (G. platys, flat, broad)
attachments- from the lower border of the mandible to the superficial fascia of the skin of the neck overlying the clavicle function- wrinkles the anterior nuccal skin
32
Innervation of platysma (G. platys, flat, broad)
facial n.
33
Blood supply of platysma (G. platys, flat, broad)
facial, submental & suprascapular a.
34
Function and attachment of zygomaticus major [G. zygon, yoke, a joining or pair]
attachments- from zygomatic bone to angle of the mouth function- raises the buccal angle
35
Innervation of zygomaticus major [G. zygon, yoke, a joining or pair]
facial n.
36
Blood supply of zygomaticus major [G. zygon, yoke, a joining or pair]
facial, superior labial, transverse facial & infraorbital a.
37
Function and attachment of inferior oblique
attachments- from the maxilla lateral to the nasolacrimal groove to the inferolateral, posterior aspect of the sclera function- elevation, abduction and extorsion of the eye
38
Innervation of inferior oblique
inferior ramus of the oculomotor n.
39
Blood supply of inferior oblique
ophthalmic & infraorbital a.
40
Function and attachment of inferior rectus (L. straight)
attachments- from the common tendinous ring to the inferior aspect of the sclera. function- depression, adduction & extorsion of eye
41
Innervation of inferior rectus (L. straight)
inferior ramus of the oculomotor n.
42
Blood supply of inferior rectus (L. straight)
ophthalmic & infraorbital a.
43
Function and attachment of lateral rectus
attachments- from the common tendinous ring to the lateral aspect of the sclera. function- abduction of the eye
44
Innervation of lateral rectus
abducens n.
45
Blood supply of lateral rectus
ophthalmic & lacrimal a.
46
Function and attachment of levator palpebrae superioris
attachments- from the inferior aspect of the lesser wing of the sphenoid to the tarsus and skin of the upper lid. function- elevation of the upper lid
47
Innervation of levator palpebrae superioris
superior ramus of the oculomotor n.
48
Blood supply of levator palpebrae superioris
ophthalmic & supraorbital a.
49
Function and attachment of medial rectus
attachments- from the common tendinous ring to the medial aspect of the sclera, function- adduction of the eye
50
Innervation of medial rectus
inferior ramus of the oculomotor n.
51
Blood supply of medial rectus
ophthalmic, anterior ethmoidal & posterior ethmoidal a.
52
Function and attachment of superior oblique
attachments- from the superomedial, posterior aspect of the orbit (body of sphenoid) to the superolateral, posterior aspect of the sclera passing around the trochlea (superomedial, anterior aspect of the orbit), function- abduction, depression & intorsion of the eye
53
Innervation of superior oblique
trochlear n.
54
Blood supply of superior oblique
ophthalmic, uspraorbital, anterior ethmoidal & posterior ethmoidal a.
55
Function and attachment of superior rectus
attachments- from the common tendinous ring to the superior aspect of the sclera, function- elevation, adduction & intorsion of the eye
56
Innervation of superior rectus
superior ramus of the oculomotor n.
57
Blood supply of superior rectus
ophthalmic & supraorbital a.
58
Function and attachment of masseter
attachments- from the zygomatic arch to the angle of the mandible & lateral aspect of the ramus, function- elevation, protraction and retraction (deep fibers) the mandible
59
Innervation of masseter
mandibular nerve
60
Blood supply of masseter
masseteric, facial & transverse facial a.
61
Function and attachment of temporalis
attachments- from the temporal fossa to the coronoid process & anterior border (temporal crest) of the ramus of the mandible, function- elevation & retraction (posterior aspect of the muscle) of the mandible
62
Innervation of temporalis
mandibular n.
63
Blood supply of temporalis
deep temporal a.
64
Function and attachment of lateral pterygoid
attachments- from the infratemporal surface of the sphenoid & lateral surface of the lateral pterygoid plate to the pterygoid fovea of the mandible & the TMJ disc function- protraction of the mandible & acts with the ipsilateral medial pterygoid to rotate the mandible to produce the side-to-side movements during trituration of food
65
Innervation of lateral pterygoid
mandibular n.
66
Blood supply of lateral pterygoid
pterygoid & ascending palatine a.
67
Function and attachment of medial pterygoid
attachments- from the medial surface of the lateral pterygoid plate & adjacent pterygoid fossa to the medial aspect of the angle of the mandible function- elevation of the mandible & acts with the ipsilateral lateral pterygoid to rotate the mandible to produce the side-to-side movements during trituration of food
68
Innervation of medial pterygoid
mandibular n.
69
Blood supply of medial pterygoid
pterygoid a.
70
Function and attachment of anterior digastric
attachments- from the digastric fossa of the mandible to the intermediate tendon (greater cornu of hyoid), function- depression of the mandible or elevation of the hyoid
71
Innervation of anterior digastric
mylohyoid branch of the inferior alveolar n.
72
Blood supply of anterior digastric
submental branch of facial a.
73
Function and attachment of posterior digastric
attachments- from the temporal mastoid notch to the intermediate tendon (greater cornu of hyoid), function- depression of the mandible or elevation of the hyoid
74
Innervation of posterior digastric
facial n.
75
Blood supply of posterior digastric
occipital & posterior auricular a.
76
Function and attachment of geniohyoid
attachments- from the inferior genial tubercle of the mandible to the anterior aspect of the body of the hyoid, function- elevation & anterior displacement of the hyoid, or depression of the mandible with a fixed hyoid
77
Innervation of geniohyoid
ventral ramus of C1 (via the hypoglossal n.)
78
Blood supply of geniohyoid
sublingual a.
79
Function and attachment of longus capitis
attachments- from the anterior tubercles of the transverse processes of cervical vertebrae to the basilar occipital bone, function- flexion of the head & neck
80
Innervation of longus capitis
ventral rami of cervical spinal n.
81
Blood supply of longus capitis
vertebral, ascending cervical, ascending pharyngeal & inferior thyroid a.
82
Function and attachment of longus colli (L. neck)
attachments- from cervical vertebral bodies to cervical vertebral bodies & transverse processes, function- flexion of the neck
83
Innervation of longus colli (L. neck)
ventral rami of cervical spinal n.
84
Blood supply of longus colli (L. neck)
vertebral, ascending pharyngeal & inferior thyroid a.
85
Function and attachment of mylohyoid
attachments- from the mylohyoid line of the mandible to the midline raphe & anterior aspect of body of the hyoid, function- elevation of the floor of the oral cavity
86
Innervation of mylohyoid
mylohyoid branch of the inferior alveolar n.
87
Blood supply of mylohyoid
submental branch of facial & lingual a.
88
Function and attachment of omohyoid (G. omos, shoulder)
attachments- from the superior border of the scapula medial to the scapular notch to the lateral aspect of the hyoid passing through an intermediate tendon sling loosely associated with the clavicle & 1st rib, function- depression of the hyoid
89
Innervation of omohyoid (G. omos, shoulder)
ansa cervicalis
90
Blood supply of omohyoid (G. omos, shoulder)
superior thyroid & suprascapular a.
91
Function and attachment of scalenus anterior
attachments- from the transverse processes (anterior tubercles) of middle cervical vertebrae to the scalene tubercle of the 1st rib, function- elevation of 1st rib (during forced inspiration) & flexion & rotation of the neck
92
Innervation of scalenus anterior
ventral rami of cervical spinal n.
93
Blood supply of scalenus anterior
ascending cervical, suprascapular & trasverse cervical a.
94
Function and attachment of scalenus medius
attachments- from the transverse processes of cervical vertebrae to 1st rib, function- elevation of 1st rib (during forced inspiration) & lateral flexion of the neck
95
Innervation of scalenus medius
ventral rami of cervical spinal n.
96
Blood supply of scalenus medius
ascending cervical, suprascapular & transverse cervical a.
97
Function and attachment of scalenus posterior
attachments- from lower cervical transverse processes to the 2nd rib, function- elevation of the rib (during forced inspiration)
98
Innervation of scalenus posterior
ventral rami of cervical spinal n.
99
Blood supply of scalenus posterior
ascending cervical, suprascapular & transverse cervical a.
100
Function and attachment of sternocleidomastoid
attachments- from the lateral aspect of the mastoid process & superior nuchal line to the manubrium & medial 1/3rd of the clavicle, function- flexion of the head & neck, & contralateral rotation of the head
101
Innervation of sternocleidomastoid
accessory n
102
Blood supply of sternocleidomastoid
occipital, posterior auricular, superior thyroid & suprascapular a.
103
Function and attachment of sternohyoid
attachments- from the posterior side of the proximal clavical & adjacent manubrium to the inferior border of body of the hyoid, function- depresses the hyoid
104
Innervation of sternohyoid
ansa cervicalis
105
Blood supply of sternohyoid
superior thyroid a.
106
Function and attachment of sternothyroid
attachments- from the posterior aspect of the manubrium to the thyroid lamina, function- depression of the elevated larynx
107
Innervation of sternothyroid
ansa cervicalis
108
Blood supply of sternothyroid
superior thyroid
109
Function and attachment of thyrohyoid
attachments- from the thyroid lamina to the hyoid bone, function- depression of the hyoid or elevation of the thyroid cartilage
110
Innervation of thyrohyoid
ventral ramus of C1 via the hypoglossal n.
111
Blood supply of thyrohyoid
superior thyroid a.
112
Function and attachment of splenius capitis (G. splenion, bandage)
attachments- from the ligamentum nuchae and lower cervical & upper thoracic spinous processes to the lateral third of the superior nuchal line, function- extension & lateral flexion of the head
113
Innervation of splenius capitis (G. splenion, bandage)
dorsal rami of cervical spinal n.
114
Blood supply of splenius capitis (G. splenion, bandage)
vertebral, occipital, deep cervical & deep branch of transverse cervical a.
115
Function and attachment of splenius cervicis
attachments- from spinous processes of upper thoracic vertebrae to transverse processes of upper three cervical vertebrae, function- together extend neck, single side does ipsilateral rotation
116
Innervation of splenius cervicis
dorsal rami of cervical spinal n.
117
Blood supply of splenius cervicis
vertebral, occipital, deep cervical & deep branch of transverse cervical a.
118
Function and attachment of longissimus capitis
attachments- from the upper thoracic transverse processes to the posterior margin of the mastoid process, function- extension & ipsilateral rotation of the head
119
Innervation of longissimus capitis
dorsal rami of spinal n.
120
Blood supply of longissimus capitis
vertebral, occipital, deep cervical & deep branch of transverse cervical a.
121
Function and attachment of semispinalis capitis
attachments- from upper thoracic & cervical transverse processes to the occipital bone between the inferior & superior nuchal lines, function- extension of the head
122
Innervation of semispinalis capitis
dorsal rami of cervical spinal n.
123
Blood supply of semispinalis capitis
vertebral, occipital, deep cervical & deep branch of transverse cervical a.
124
Function and attachment of semispinalis cervicis
attachments- from upper thoracic transverse processes to cervical spinous processes, function- extension of the neck
125
Innervation of semispinalis cervicis
dorsal rami of cervical spinal n.
126
Blood supply of semispinalis cervicis
vertebral, deep cervical & deep branch of transverse cervical a.
127
Function and attachment of rectus capitis posterior major
attachments- from the spinous process of the axis to the adjacent occipital bone, function- extension of the head
128
Innervation of rectus capitis posterior major
suboccipital n. (dorsal ramus C1)
129
Blood supply of rectus capitis posterior major
vertebral & occipital a.
130
Function and attachment of rectus capitis posterior minor
attachments- from the posterior tubercle of the atlas to the adjacent occipital bone, function- extension of the head
131
Innervation of rectus capitis posterior minor
suboccipital nerve (dorsal ramus C1)
132
Blood supply of rectus capitis posterior minor
vertebral & occipital a.
133
Function and attachment of obliquus capitis inferior
attachments- from the spinous process of the axis to the transverse process of the atlas, function- ipsilateral rotation of the head
134
Innervation of obliquus capitis inferior
suboccipital n. (dorsal ramus C1)
135
Blood supply of obliquus capitis inferior
vertebral & occipital a.
136
Function and attachment of obliquus capitis superior
attachments- from the transverse process of atlas to the occipital bone between superior & inferior nuchal lines, function- posterolateral flexion of the head
137
Innervation of obliquus capitis superior
suboccipital n. (dorsal ramus C1)
138
Blood supply of obliquus capitis superior
vertebral & occipital a.
139
Function and attachment of genioglossus
attachments- from the superior genial tubercle to the hyoid (body), middle constrictor & length of the ventral aspect of the tongue, function- protrusion of the tongue
140
Innervation of genioglossus
hypoglossal n.
141
Blood supply of genioglossus
deep lingual & sublingual a.
142
Function and attachment of hyoglossus (G. glossa, tongue)
attachments- from the greater cornu & body of the hyoid to the lateral aspect of the tongue, function- depression of the tongue
143
Innervation of hyoglossus (G. glossa, tongue)
hypoglossal n.
144
Blood supply of hyoglossus (G. glossa, tongue)
submental & sublingual a.
145
Function and attachment of styloglossus
attachments- from the styloid process to the lateral base of the tongue, function- elevation & retraction of the tongue
146
Innervation of styloglossus
hypoglossal n.
147
Blood supply of styloglossus
sublingual a.
148
Function and attachment of levator veli palatini
attachments- from the petrous temporal bone adjacent to the carotid canal & the cartilagenous portion of the auditory tube to the soft palate, function- elevates the soft palate
149
Innervation of levator veli palatini
vagus nerve (pharyngeal branch)
150
Blood supply of levator veli palatini
ascending palatine, greater palatine & lesser palatine a.
151
Function and attachment of musculus uvulae (L. uva, grape)
attachments- from the hard palate (horizontal plate of palatine bone) to the uvular mucosa, function- aids in palatopharyngeal closure
152
Innervation of musculus uvulae (L. uva, grape)
vagus n. (pharyngeal branch)
153
Blood supply of musculus uvulae (L. uva, grape)
ascending palatine & lesser palatine a.
154
Function and attachment of palatoglossus
attachments- from the palatine aponeurosis to the lateral aspect of the tongue, function- elevation of the root of the tongue & approximation of the palatoglossal folds
155
Innervation of palatoglossus
vagus n. (pharyngeal branch)
156
Blood supply of palatoglossus
ascending palatine, ascending pharyngeal & tonsilar a.
157
Function and attachment of palatopharyngeus
attachments- from posterior hard palate (horizontal plate of palatine bone) and palatine aponeurosis to the wall of the pharynx, function- elevation of the pharynx & approximation of the palatopharyngeal folds
158
Innervation of palatopharyngeus
vagus n. (pharyngeal branch)
159
Blood supply of palatopharyngeus
ascending palatine, ascending ppharyngeal & tonsilar a.
160
Function and attachment of tensor veli palatini
attachments- from the scaphoid fossa, cartilage of the auditory tube & spine of the sphenoid to the palatine aponeurosis (after deflecting around the hamulus), function- unilateral deviation & bilateral tension of the soft palate
161
Innervation of tensor veli palatini
mandibular n.
162
Blood supply of tensor veli palatini
ascending palatine, greater palatine & lesser palatine a.
163
Function and attachment of inferior constrictor
attachments- from the cricoid & thyroid cartilages to median pharyngeal raphe, function- general sphinchteric & peristalic action in swallowing
164
Innervation of inferior constrictor
pharyngeal plexus (X), recurrent laryngeal n & external laryngeal n.
165
Blood supply of inferior constrictor
ascending pharyngeal & inferior thyroid a.
166
Function and attachment of middle constrictor
attachments- from the greater & lesser cornu of hyoid & stylohyoid ligament to the median pharyngeal raphe, function- general sphinchteric & peristalic action in swallowing
167
Innervation of middle constrictor
pharyngeal plexus (X)
168
Blood supply of middle constrictor
ascending pharyngeal & tonsilar a.
169
Function and attachment of superior constrictor
attachments- from pterygoid hamulus & pterygomandibular raphe to the median pharyngeal raphe, function- general sphinchteric & peristalic action in swallowing
170
Innervation of superior constrictor
pharyngeal plexus (X)
171
Blood supply of superior constrictor
ascending pharyngeal & tonsilar a.
172
Function and attachment of salpingopharyngeus (G. salpinx, trumpet)
attachments- from the cartilage of the auditory tube to the lateral wall of the pharynx, function- elevation of the superior lateral aspect of the pharyngeal wall
173
Innervation of salpingopharyngeus (G. salpinx, trumpet)
vagus n.
174
Blood supply of salpingopharyngeus (G. salpinx, trumpet)
ascending pharyngeal & ascending palatine a.
175
Function and attachment of stylopharyngeus
attachments- from the styloid process to the posterolateral aspect of the pharyngeal wall, function- elevation of the pharyngeal wall
176
Innervation of stylopharyngeus
glossopharyngeal n.
177
Blood supply of stylopharyngeus
ascending pharyngeal a.
178
Function and attachment of aryepiglotticus
attachments- from the oblique arytenoids to the aryepiglottic folds, function- closes the aryepiglottic folds
179
Innervation of aryepiglotticus
recurrent laryngeal n.
180
Blood supply of aryepiglotticus
superior & inferior laryngeal a.
181
Function and attachment of lateral cricoarytenoid (G. krikos, a ring)
attachments- from the arch of the cricoid cartilage to the muscular process of the arytenoid, function- closes the glottis (adducts the vocal folds)
182
Innervation of lateral cricoarytenoid (G. krikos, a ring)
recurrent laryngeal n.
183
Blood supply of lateral cricoarytenoid (G. krikos, a ring)
superior & inferior laryngeal a.
184
Function and attachment of posterior cricoarytenoid
attachments- from the posterior surface of the cricoid lamina to the muscular process of the arytenoid cartilage, function- opens the glottis (abducts the vocal folds)
185
Innervation of posterior cricoarytenoid
recurrent laryngeal n.
186
Blood supply of posterior cricoarytenoid
superior & inferior laryngeal a.
187
Function and attachment of cricothyroid
attachments- from the anterolateral external aspect of the cricoid cartilage to the lower border of the thyroid cartilage & inferior cornu, function- tenses the vocal folds
188
Innervation of cricothyroid
external laryngeal n.
189
Blood supply of cricothyroid
superior thyroid a.
190
Function and attachment of interarytenoids (transverse & oblique)
attachments- from arytenoid to arytenoid, function- closes glottis & assists in closing aryepiglottic folds
191
Innervation of interarytenoids (transverse & oblique)
recurrent laryngeal n.
192
Blood supply of interarytenoids (transverse & oblique)
superior & inferior laryngeal a.
193
Function and attachment of thyroarytenoid
attachments- from the lower half of the thyroid angle to the anterolateral aspect of the arytenoid cartilage, function- closes glottis or slackens vocal folds
194
Innervation of thyroarytenoid
recurrent laryngeal n.
195
Blood supply of thyroarytenoid
superior & inferior laryngeal a.
196
Function and attachment of thyroepiglotticus
attachments- from the thyroid angle to the epiglottic margin, function- widens glottis
197
Innervation of thyroepiglotticus
recurrent laryngeal n.
198
Blood supply of thyroepiglotticus
superior & inferior laryngeal a.
199
Function and attachment of vocalis
attachments- from the thyroid angle to the vocal process of the arytenoid cartilage, function- slackens tensed vocal ligaments for changes in pitch
200
Innervation of vocalis
recurrent laryngeal n.
201
Blood supply of vocalis
superior & inferior laryngeal a.
202
Function of stapedius
dampens vibrations of the stapes
203
Innervation of stapedius
facial n.
204
Function of tensor tympani
dampens movement of the malleus
205
Innervation of tensor tympani
nerve to the medial pterygoid, mandibular n.
206
function and attachment of stylohyoid
attachments- from the styloid process to the greater cornu of the hyoid function- elevation & retraction of the hyoid
207
innervation of stylohyoid
facial n.
208
blood supply of stylohyoid
occipital, posterior auricular & facial a.
