Spinal Lab Practical A/I #2 Flashcards
What is the innervation of the frontalis belly-epicranius, corrugator supercilii, superior auricular, and temporoparietalis
temporal branches of facial nerve
What is the innervation of orbital part-orbicularis oculi and palpebral part-orbicularis oculi?
temporal and zygomatic branches of facial nerve
What is the innervation of procerus, compressor nasi, dilator naris, and depressor septi
superior buccal branches of facial nerve
What is the innervation of levator labii superioris, levator labii superioris alaeque nasi, zygomaticus minor, zygomaticus major, levator anguli oris, and buccinators?
buccal branches of facial nerve
What is the innervation of orbicularis oris and risorius
buccal and mandibular branches of facial nerve
What is the innervation of mentalis, depressor labii inferioris, and depressor anguli oris
mandibular branches of facial nerve
What is the innervation of levator palpebral superioris, superior rectus, inferior rectus, medial rectus, and inferior oblique
oculomotor nerve
What is the innervation of lateral rectus
abducent nerve
What is the innervation of superior oblique
trochlear nerve
What is the innervation of posterior auricular and occipitalis belly-epicranius
posterior auricular branch of facial nerve
What is the innervation of temporalis
anterior and posterior deep temporal branches, mandibular division, trigeminal nerve
What is the innervation of masseter
masseteric branch, mandibular division, trigeminal nerve
Pulls scalp forward, wrinkles forehead & raises eyebrows
frontalis belly-epicranius
pulls scalp backward
occipitalis belly-epicranius
depress eyebrows medially
procerus
compress cartilage at bridge of nose
compressor naris
widens, dilates nostrils & anterior nasal aperture
dilatator naris
widens nostril
depressor septi
draws eyebrows medial & down (forms vertical furrow between eyebrows)
corrugator supercilii
raises & everts upper lip
levator labii superioris
raises & everts upper lip; dilates nostril
levator labii superioris alaquae nasi
raises upper lip; produces nasolabial groove
zygomaticus minor
draws angle of mouth up and out
zygomaticus major
raises angle of mouth; produces nasolabial groove
levator anguli oris
close mouth; purse & protrude lips
orbicularis oris
compress teeth against cheeks
buccinator
draws back angle of mouth
risorius
raises & protrudes lower lip
mentalis
draws lower lip down
depressor labii inferioris
draws corner of mouth down & out
depressor anguli oris
elevates upper eyelid
levator palpebra superioris
elevate & adduct cornea; intorsion
superior rectus
depress & adduct the cornea; extorsion
inferior rectus
adducts cornea
medial rectus
abducts cornea
lateral rectus
depress & abduct corneal; intorsion
superior oblique
elevate & abduct the cornea; extorsion
inferior oblique
elevate & retract mandible
temporalis
elevate & protract mandible
masseter
elevate & protract mandible; assists in gliding or rotatory movement
medial pterygoid
protracts mandible; pulls disc forward; depress chin & assist in gliding or rotary movement
lateral pterygoid
What innervates the medial pterygoid
medial pterygoid branch, mandibular division, trigeminal nerve
What innervates the lateral pterygoid
lateral pterygoid branch, mandibular division, trigeminal nerve
What innervates anterior scalene
ventral rami C2-C6
What innervates middle scalene
ventral rami C3-C8