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Muscles of the head and neck
Origin, insertion, action, and innervation of Head and Neck
74
Anatomy
Professional
08/31/2012

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Term
What is the origin of the anterior scalene
Definition
C3-C6 anterior tubercles of TP
Term
What is the insertion of the anterior scalene
Definition
Scalene tubercle on first rib
Term
What is the innervation of the buccinator muscle
Definition
buccal branches of the facial nerve (VII)
Term
What is the action of the ciliary muscle
Definition
relaxes the suspensory ligament of the lens (pupillary constriction)
Term
What is the innervation of the ciliary muscle
Definition
parasympathetic fibers in the oculomotor nerve (III)
synapsing in the ciliary ganglion
Term
what is the origin of anterior belly of the digastric muscle
Definition
digastric fossa of the mandible
Term
What is the origin of the posterior belly of the digastric muscle
Definition
Mastoid notch of the Temporal bone
Term
What is the innervation of the anterior belly of the digastric muscle
Definition
Mylohyoid nerve from the mandibular division of the trigeminal nerve
Term
What is the innervation of the posterior belly of the digastric muscle
Definition
facial nerve (VII)
Term
What is the innervation to the dilator pupilae muscle
Definition
sympathetic fibers via short ciliary nerves; synapsing in superior cervical sympathetic ganglion
Term
What is the innervation of the frontalis muscle?
Definition
temporal branches of the facial nerve


**bells palsy NOT stroke**
Term
What is the innervation of the inferior oblique muscle
Definition
oculomotor nerve (III) inferior division
Term
What is the innervation of the inferior rectus muscle
Definition
oculomotor nerve (III) inferior division
Term
What is the innervation of the lateral rectus muscle
Definition
abducens nerve (VI)
Term
What is the innervation of the levator palpebrae superioris muscle
Definition
Oculomotor nerve (III) and sympathetics (to posterior tarsal portion)
Term
What is the innervation of the levator scapulae
Definition
dorsal scapular nerve of C5
upper part of the muscles recieves C3/C4
Term
What is the origin of levator scapulae
Definition
transverse process of C1-C4
Term
What is the insertion of the levator scapulae muscles
Definition
superior medial boarder of the scapula from the superior angle to the spine
Term
What is the origin of the longus capitis muscle
Definition
anterior tubercles of vertebrae C3-C6
Term
What is the insertion of the longus capitis muscle
Definition
basilar portion of the occipital bone
Term
What is the action of the longus capitis muscle
Definition
flex the head and neck
Term
What is the origin of the longus coli muscle
Definition
anterior tubercles of C1
Term
What is the insertion of the longus coli muscle
Definition
anterior surface of the body of T3
Term
What is the action of the longus coli muscle
Definition
flex neck, rotate, and lateral bend
Term
What is an important feature of longus coli
Definition
hematoma in whiplash retrotracheal interspace
Term
What is the innervation of the medial rectus muscle
Definition
oculomotor nerve (III)
Term
What is the insertion of the mentalis muscle
Definition
skin of the chin
Term
What is the action of the mentalis muscle
Definition
elevates the skin of the chin
Term
What is the insertion of the middle scalene muscle
Definition
upper surface of the first rib behind the subclavian artery
Term
What is the innervation of the oblique inferior muscle
Definition
oculomotor nerve (III)
Term
What is the innervation of the oblique superior muscle
Definition
trochlear nerve (IV)
Term
What is the action of the orbicularis oculi muscle
Definition
closes eyelids
Term
What is the innervation of the orbicularis oculi muscle
Definition
temporal and zygomatic branches of the facial nerve (VII)
Term
What is the action of the obicularis oris muscle
Definition
purses the lips
Term
What is the action of the palatoglossus muscle
Definition
elevates and retracts the tounge
elevates the soft palate
Term
What is the innervation of the palatoglossus muscle
Definition
vagus (X) via the pharyngeal plexus
Term
What is the action of the palatopharyngeus muscle
Definition
elevates the larynx
elevates the soft palate
Term
What is the innervation of the palatopharyngeus muscle
Definition
vagus (X) via the pharyngeal plexus
Term
What is the innervation of the platysma muscle
Definition
cervical branch of the facial nerve
Term
What is the action of the posterior scalene muscle
Definition
elevates the second rib
** longest of the scalenes**
Term
What is a special feature of the lateral pterygoid
Definition
the only one of the muscles of mastication that opens the mouth
Term
What is the origin of rectus capitis anterior
Definition
lateral mass of atlas
Term
What is the insertion of rectus capitis anterior
Definition
basilar portion of occiptial bone
Term
What is the action of rectus captiits anteror
Definition
flexes the head
Term
What is the innervation of rectus capitis anterior
Definition
ventral primary ramus of C1
Term
What is supplies the rectuc capitis anterior
Definition
deep cervical artery
Term
What is the origin/insertion of rectus capitis lateralis
Definition
tp of atlas
occipital bone anterolateral to foramen magnum
Term
What is the action/innervation of rectus capitis laterals
Definition
lateral bends head
ventral primary ramus of C1
Term
What is the supply of rectus capitis lateralis
Definition
deep cervical artery
Term
What is the origin/insertion of rectus inferior
Definition
common tendinous ring at the apex of the orbit
sclera on the inferior surface of the eyeball
Term
WHat is the action/innervation of the rectus inferior
Definition
depresses and adduction of the corneal part of the eye;rotates the superior pole of the iris medal
Oculomotor (III) superior division
Term
What is the supply of the rectus inferior
Definition
opthalmic artery
Term
What is the origin of the recuts lateral, medial, and superior
Definition
common tendinous ring at the apex of the orbit
Term
What is the insertion of the rectus lateral
Definition
sclera on the lateral surface of the eyeball
Term
What is the insertion of the rectus medial
Definition
sclera on the medial surface of the eyeball
Term
WHat is the insertion of the recuts superior
Definition
sclera on the superior surface of the eyeball
Term
What is the innervation of the rectus lateral
Definition
abuducens nerve (VI)
Term
What is the innervation of the rectus medial
Definition
oculomotor nerve (III) inferior division
Term
WHat is the innervation of the rectus superior
Definition
oculomotor nerve (III) superior division
Term
What is the supply of the rectus lateral, medial, and superior
Definition
opthalmic artery
Term
The risorious muscle origin
Definition
fascia of the lateral cheek
Term
The risorious muscle insertion
Definition
skin of the angle of the mouth
Term
The risorious muscle action
Definition
smiling (lateral movement)
Term
what is considered to be the band aid muscle that holds all the other muscles down in the neck
Definition
splenius
Term
What is the origin of the splenius
Definition
ligamentum nuchae and spines of C7-T6
Term
WHat is the action of the splenus muscle
Definition
extends and laterally bends the neck and head; rotates the head to the same side
Term
What is the first muscle to fire when the gun goes off in a track meet?
Definition
stapedius
Term
What is the insertion of the stapedius
Definition
oval window in the neck of the stapes
Term
What is a special feature of the stapedius muscle
Definition
2nd pharyngeal arch
Term
What is the innervation of the SCM
Definition
spinal accessory nerve (XI) with sensory supply from C2 and C3 for proprioception
Term
What muscle causes ipsilateral lateral flexion and contralateral rotation
Definition
SCM
Term
the temporalis muscle inserts
Definition
coronoid process of the mandible and the anterior surface of the ramus of the mandible
Term
the action of the tensor tympani muscle
Definition
dampens vibrations of the tympanic membrane
Term
What is the action of the tensor veli palatini muscle
Definition
opens the auditory tube and tenses the soft palate
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