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35 Cards in this Set
- Front
- Back
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platysma + innervation
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O:fascia and skin overlying pectoralis major and deltoid muscles
I: lower border of mandible and skin of face A: tense skin of neck, draws corner of mouth downward Inn: facial nerve (CN VII) |
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sternocleidomastoid + innervation
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O: (two heads) from manubrium and sternal end of the clavicle
I: mastoid process and superior nuchal line A: turns head obliquely to the opposite side when acting alone or flexes the neck when both muscles act together Inn: spinal accessory nerve (CN XI) |
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digastric + innervation
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O: anterior belly- digastric fossa of mandible
posterior belly- mastoid notch of temporal bone I: hyoid bone by means of intermediate tendon A: both raise the hyoid and depress mandible posterior: retracts hyoid Inn: anterior- nerve to mylohyoid (CN V3) posterior- facial nerve (CN VII) |
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stylohyoid + innervation
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O: styloid process of temporal bone
I: hyoid bone (perforated near insertion by digastric muscle) A: raise and retract hyoid Inn: facial nerve (CN VII) |
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mylohyoid + innervation
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O: mylohyoid line of mandible
I: hyoid bone and median raphe A: raise hyoid, depress mandible, support tongue Inn: nerve to mylohyoid (CN V3) |
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omohyoid + innervation
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O: superior border of scapula (inferior belly)
I: hyoid bone (superior belly); central tendon is held to clavicle by fascial sling A: depress hyoid Inn: ansa cervicalis (C1-C3) |
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sternohyoid + innervation
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O: manubrium of sternum
I: hyoid bone A: depress hyoid Inn: ansa cervicalis (C1-C3) |
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sternothyroid m + innervation
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O: manubrium of sternum
I: thyroid cartilage A: depresses larynx Inn: ansa cervicalis (C1-C3) |
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thyrohyoid + innervation
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O: thyroid cartilage
I: hyoid bone A: depress hyoid, elevate larynx Inn: C1 |
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muscles innervated by ansa cervicalis
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sternohyoid, sternothyroid, both bellies of omohyoid
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muscles innervated by facial nerve CN VII
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platysma, posterior belly of digastric, stylohyoid m.
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muscles innervated by nerve to mylohyoid
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mylohyoid and anterior belly of digastric
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scalene muscles + innervation
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O: transverse processes of cervical vertebrae
anterior: C3-C6 middle: C1-C7 posterior: C4-C6 I: first and second rib (posterior) A: flex and rotate the neck and head; raise upper 2 ribs during forced inspiration Inn: VPRs of cervical nerves |
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Temporalis muscle OIA
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O: whole of the temporal fossa and the temporalis fascia
I: the muscle and the tendon attach to anterior and medial border of the mandibular ramus from tip of coronoid process down to the region directly posterior to the 3rd molars A: elevates the mandible during biting and mastication, posterior fibers retract mandible |
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medial pterygoid OIA
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O; medial surface of the lateral pterygoid plate, the posterior portion of the palatine (pyramidal process) and maxillary tuberosity
I: medial aspect of the angle of mandible, inferior to mandibular foramen A; elevates and protrudes mandible (bilateral); produces side-to-side movements (unilateral) |
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superior head of lateral pterygoid OIA
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O: infratemporal crest, greater wing of sphenoid
I: articular disk, joint capsule, anterior condylar neck A: control position of disc during closing |
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inferior head of lateral pterygoid OIA
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O: lateral surface of the lateral pterygoid plate
I: depression on the anterior condylar neck (pterygoid fovea) A: protrude and depress mandible (bilateral); side-to-side movements (unilateral) |
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masseter OIA (deep portion)
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O: deep medial surface of the zygomatic arch
I: the superior half of the lateral mandibular ramus A: elevate the mandible (transverse movements when firing unilaterally) |
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masseter OIA (superficial portion)
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O: the anterior 2/3 of the inferior surface of the zygomatic arch
I: the lateral aspect of the ramus of the mandible down to the angle of the mandible A: A: elevate the mandible (transverse movements when firing unilaterally) |
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lateral excursion of the mandible
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inf. head of lateral pterygoid
medial pterygoid both heads of masseter |
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elevate the mandible
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temporalis
masseter medial pterygoid |
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depress the mandible
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inf. head of lateral pterygoid
ant. digastric mylohyoid |
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retrusion of the mandible
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posterior fibers of temporalis
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protrusion of the mandible
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inf. lateral pterygoid
medial pterygoid |
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superior constrictor + inn
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O: pterygoid hamulus, pterygomandibular raphe, posterior end of mylohyoid line, side of tongue
I: median raphe of pharynx, pharyngeal tubercle A: constrict wall of pharynx Inn: CN XI via X |
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middle constrictor
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O: stylohyoid ligament, hyoid bone
I: median raphe of pharynx A: constrict wall of pharynx Inn: XI via X |
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inferior constrictor
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O: thyroid cartilage
I: median raphe of pharynx A: constrict wall of pharynx Inn: XI via X |
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salpingopharyngeus + inn
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O: cartilaginous part of auditory tube
I: merges with fibers of palatopharyngeus and attaches with them A: elevates pharynx inn: CN XI via X |
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stylopharyngeus OIA + inn
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O: medial aspect of styloid process
I: thyroid cartilage A: helps to elevate the pharynx/larynx Inn: CN IX |
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palatopharyngeus + inn
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O: posterior border of hard palate and aponeurosis of soft palate
I: pharyngeal wall and posterior border of thyroid cartilage A: elevate pharynx/larynx inn: XI via X |
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geniohyoid + inn
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O: inferior genial spine
I: body of hyoid A: pulls hyoid anterosuperiorly, thereby shortening floor of the mouth (aids in swallowing) Inn: C1 via hypoglossal (CNXII) |
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palatoglossus (substance of anterior arch)
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O: palatine aponeurosis
I: side of tongue A: elevates posterior portion of tongue Inn: XI via X |
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levator veli palatini
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O: petrous portion of temporal bone & cartilage of auditory tube
I: palatine aponeurosis A: elevates the soft palate Inn: XI via X |
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tensor veli palatini
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O: scaphoid fossa, spine of sphenoid and membranous portion of the auditory tube
I: palatine aponeurosis A: tenses the soft palate, opens auditory tube Inn: V3 |
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has an insertion at thyroid cartilage
has an origin here |
stylopharyngeus
palatopharyngeus inferior constrictor |
