Muscles Flashcards
Occipotofrontalis (Frontal Belly)
O: epicranial aponeurosis
I: skin superior to supraorbital margin
A: draws scalp anteriorly, raises eyebrows, wrinkles skin of forehead horizontally
Occipitofrontalis (occipital belly)
O: occipital bone and mastoid process of temporal bone
I: epicranial aponeurosis
A: draws scalp posteriorly
I: Facial 7
Obicularis Oris
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
Zygomaticus Major
O: zygomatic bone
I: skin at angle of mouth and obicularis oris
A: draws angle of the mouth superiorly and laterally
I: Facial 7
Zygomaticus Minor
O: zygomatic bone
I: upper lip
A: raises upper lip, exposing maxillary teeth
I: Facial 7
Levator Labii Superiorus
O: superior infraorbital foramen to maxilla
I: skin at angle of mouth and obicularis oris
A: raises upper lip
I: Facial 7
Depressor Labii Inferioris
O: mandible
I: skin of lower lip
A: depresses lower lip
I: Facial 7
Depressor Anguli Oris
O: mandible
I: angle of mouth
A: draws angle of mouth laterally & inferiorly
I: Facial 7
Levator Anguli Oris
O: inferior to infraorbital foramen
I: skin of lower lip and obicularis oris
A: draws angle of mouth laterally & superiorly
I: Facial 7
Buccinator
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
Risorius
O: fascia over parotid gland
I: skkin at angle of mouth
A: draws angle of mouth laterally
I: Facial 7
Mentalis
O: mandible
I: skin of chin
A: elevates & protrudes lower lip and pulls skin of chin up
I: Facial 7
Mentalis
O: mandible
I: skin of chin
A: elevates & protrudes lower lip and pulls skin of chin up
I: Facial 7
Mentalis
O: mandible
I: skin of chin
A: elevates & protrudes lower lip and pulls skin of chin up
I: Facial 7
Mentalis
O: mandible
I: skin of chin
A: elevates & protrudes lower lip and pulls skin of chin up
I: Facial 7
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
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
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
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
Orbicularis Oculi
O: medial wall of orbit
I: circular path aorund orbit
A: closes eye
I: Facial 7
Orbicularis Oculi
O: medial wall of orbit
I: circular path aorund orbit
A: closes eye
I: Facial 7
Orbicularis Oculi
O: medial wall of orbit
I: circular path aorund orbit
A: closes eye
I: Facial 7
Orbicularis Oculi
O: medial wall of orbit
I: circular path aorund orbit
A: closes eye
I: Facial 7
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
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
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
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
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
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
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
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
Inferior Rectus
O: common tendinous ring
I: inferior & central part of eyeball
A: moves eyeball inferiorly & medially, rotates medially
I: Ocularmotor 3
Inferior Rectus
O: common tendinous ring
I: inferior & central part of eyeball
A: moves eyeball inferiorly & medially, rotates medially
I: Ocularmotor 3
Inferior Rectus
O: common tendinous ring
I: inferior & central part of eyeball
A: moves eyeball inferiorly & medially, rotates medially
I: Ocularmotor 3
Inferior Rectus
O: common tendinous ring
I: inferior & central part of eyeball
A: moves eyeball inferiorly & medially, rotates medially
I: Ocularmotor 3
Lateral Rectus
O: common tendinous ring
I: lateral side of eyeball
A: moves eyeball laterally
I: Abducens 6
Lateral Rectus
O: common tendinous ring
I: lateral side of eyeball
A: moves eyeball laterally
I: Abducens 6
Lateral Rectus
O: common tendinous ring
I: lateral side of eyeball
A: moves eyeball laterally
I: Abducens 6
Lateral Rectus
O: common tendinous ring
I: lateral side of eyeball
A: moves eyeball laterally
I: Abducens 6
Medial Rectus
O: common tendinous ring
I: medial side of eyeball
A: moves eyeball medially
I: Ocularmotor 3
Medial Rectus
O: common tendinous ring
I: medial side of eyeball
A: moves eyeball medially
I: Ocularmotor 3
Medial Rectus
O: common tendinous ring
I: medial side of eyeball
A: moves eyeball medially
I: Ocularmotor 3
Medial Rectus
O: common tendinous ring
I: medial side of eyeball
A: moves eyeball medially
I: Ocularmotor 3
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
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
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
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
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
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
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
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
Levator Palpebrae Superioris
O: roof of orbit
I: skin & tarsal plate of upper eyelids
A: elevates upper eyelids
I: Ocularmotor 3
Levator Palpebrae Superioris
O: roof of orbit
I: skin & tarsal plate of upper eyelids
A: elevates upper eyelids
I: Ocularmotor 3
Levator Palpebrae Superioris
O: roof of orbit
I: skin & tarsal plate of upper eyelids
A: elevates upper eyelids
I: Ocularmotor 3
Masseter
O: maxilla and zygomatic arch
I: angle and ramus of the madible
A: elevates madible
I: mandibular division of the trigeminal 5
Levator Palpebrae Superioris
O: roof of orbit
I: skin & tarsal plate of upper eyelids
A: elevates upper eyelids
I: Ocularmotor 3
Masseter
O: maxilla and zygomatic arch
I: angle and ramus of the madible
A: elevates madible
I: mandibular division of the trigeminal 5
Masseter
O: maxilla and zygomatic arch
I: angle and ramus of the madible
A: elevates madible
I: mandibular division of the trigeminal 5
Masseter
O: maxilla and zygomatic arch
I: angle and ramus of the madible
A: elevates madible
I: mandibular division of the trigeminal 5
Temporalis
O: temporal bone
I: coronoid process and ramus of mandible
A: elevates and retracts mandible
I: mandibular division of trigeminal 5
Temporalis
O: temporal bone
I: coronoid process and ramus of mandible
A: elevates and retracts mandible
I: mandibular division of trigeminal 5
Temporalis
O: temporal bone
I: coronoid process and ramus of mandible
A: elevates and retracts mandible
I: mandibular division of trigeminal 5
Temporalis
O: temporal bone
I: coronoid process and ramus of mandible
A: elevates and retracts mandible
I: mandibular division of trigeminal 5
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
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
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
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
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
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
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
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
Genioglossus
O: mandible
I: undersurface of tongue and hyoid bone
A: depresses tongue and thrusts it forward
I: hypoglossal 12
Genioglossus
O: mandible
I: undersurface of tongue and hyoid bone
A: depresses tongue and thrusts it forward
I: hypoglossal 12
Genioglossus
O: mandible
I: undersurface of tongue and hyoid bone
A: depresses tongue and thrusts it forward
I: hypoglossal 12
Genioglossus
O: mandible
I: undersurface of tongue and hyoid bone
A: depresses tongue and thrusts it forward
I: hypoglossal 12
Styloglossus
O: styloid process of temporal bone
I: side and undersurface of tongue
A: elevates tongue and draws posteriorly
I: hypoglossal 12
Styloglossus
O: styloid process of temporal bone
I: side and undersurface of tongue
A: elevates tongue and draws posteriorly
I: hypoglossal 12
Styloglossus
O: styloid process of temporal bone
I: side and undersurface of tongue
A: elevates tongue and draws posteriorly
I: hypoglossal 12
Styloglossus
O: styloid process of temporal bone
I: side and undersurface of tongue
A: elevates tongue and draws posteriorly
I: hypoglossal 12
Hyoglossal
O: greater horn and body of hyoid bone
I: side of tongue
A: depresses tongue, draws down its sides
I: hypoglossal 12
Hyoglossal
O: greater horn and body of hyoid bone
I: side of tongue
A: depresses tongue, draws down its sides
I: hypoglossal 12
Hyoglossal
O: greater horn and body of hyoid bone
I: side of tongue
A: depresses tongue, draws down its sides
I: hypoglossal 12
Hyoglossal
O: greater horn and body of hyoid bone
I: side of tongue
A: depresses tongue, draws down its sides
I: hypoglossal 12
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
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
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
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
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
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
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
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
Stylohyoid
O: styloid process of temporal bone
I: body of hyoid bone
A: elevates hyoid bone and draws it posteriorly
I: Facial 7
Stylohyoid
O: styloid process of temporal bone
I: body of hyoid bone
A: elevates hyoid bone and draws it posteriorly
I: Facial 7
Stylohyoid
O: styloid process of temporal bone
I: body of hyoid bone
A: elevates hyoid bone and draws it posteriorly
I: Facial 7
Stylohyoid
O: styloid process of temporal bone
I: body of hyoid bone
A: elevates hyoid bone and draws it posteriorly
I: Facial 7
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
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
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
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
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
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
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
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
Omohyoid
O: superior border of scapula and superior transverse ligament
I: body of HB
A: depresses HB
I: branches of spinal nerves C1-C3
Omohyoid
O: superior border of scapula and superior transverse ligament
I: body of HB
A: depresses HB
I: branches of spinal nerves C1-C3
Omohyoid
O: superior border of scapula and superior transverse ligament
I: body of HB
A: depresses HB
I: branches of spinal nerves C1-C3
Omohyoid
O: superior border of scapula and superior transverse ligament
I: body of HB
A: depresses HB
I: branches of spinal nerves C1-C3
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
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
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
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
Sternothyroid
O: manubruim of sternum
I: thyroid cartilage of larynx
A: depresses thyroid cartilage of larynx
I: branches of spinal nerves C1-C3
Sternothyroid
O: manubruim of sternum
I: thyroid cartilage of larynx
A: depresses thyroid cartilage of larynx
I: branches of spinal nerves C1-C3
Sternothyroid
O: manubruim of sternum
I: thyroid cartilage of larynx
A: depresses thyroid cartilage of larynx
I: branches of spinal nerves C1-C3
Sternothyroid
O: manubruim of sternum
I: thyroid cartilage of larynx
A: depresses thyroid cartilage of larynx
I: branches of spinal nerves C1-C3
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
Mentalis
O: mandible
I: skin of chin
A: elevates & protrudes lower lip and pulls skin of chin up
I: Facial 7
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
Orbicularis Oculi
O: medial wall of orbit
I: circular path aorund orbit
A: closes eye
I: Facial 7
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
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
Inferior Rectus
O: common tendinous ring
I: inferior & central part of eyeball
A: moves eyeball inferiorly & medially, rotates medially
I: Ocularmotor 3
Lateral Rectus
O: common tendinous ring
I: lateral side of eyeball
A: moves eyeball laterally
I: Abducens 6
Medial Rectus
O: common tendinous ring
I: medial side of eyeball
A: moves eyeball medially
I: Ocularmotor 3
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
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
Levator Palpebrae Superioris
O: roof of orbit
I: skin & tarsal plate of upper eyelids
A: elevates upper eyelids
I: Ocularmotor 3
Masseter
O: maxilla and zygomatic arch
I: angle and ramus of the madible
A: elevates madible
I: mandibular division of the trigeminal 5
Temporalis
O: temporal bone
I: coronoid process and ramus of mandible
A: elevates and retracts mandible
I: mandibular division of trigeminal 5
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
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
Genioglossus
O: mandible
I: undersurface of tongue and hyoid bone
A: depresses tongue and thrusts it forward
I: hypoglossal 12
Styloglossus
O: styloid process of temporal bone
I: side and undersurface of tongue
A: elevates tongue and draws posteriorly
I: hypoglossal 12
Hyoglossal
O: greater horn and body of hyoid bone
I: side of tongue
A: depresses tongue, draws down its sides
I: hypoglossal 12
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
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
Stylohyoid
O: styloid process of temporal bone
I: body of hyoid bone
A: elevates hyoid bone and draws it posteriorly
I: Facial 7
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
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
Omohyoid
O: superior border of scapula and superior transverse ligament
I: body of HB
A: depresses HB
I: branches of spinal nerves C1-C3
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
Sternothyroid
O: manubruim of sternum
I: thyroid cartilage of larynx
A: depresses thyroid cartilage of larynx
I: branches of spinal nerves C1-C3
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
External Anal Sphincter
O: ano
