muscles of head and neck
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19 Terms
facial nerve
CN VII; innervates the muscles of facial expression
frontalis
occipitalis
orbicularis oculi
orbicularis oris
buccinator
platysma
muscles of facial expression:
skull
origin of the muscles of facial expression
skin
insertion of the muscles of facial expression
temporal
zygomatic
buccinator
mandibular
cervical
5 branches of the facial nerve
frontalis
raises eyebrows; wrinkles foreheads
occipitalis
draws scalp posteriorly
epicranial aponeurosis
connects the frontalis m. with the occipitalis m.
oribicularis oculi
closes eye tightly (wink)
oribicularis oris
closes and protudes lips
buccinator
presses cheek to teeth
platysma m
tenses skin to neck
mandibular divsion (V3) of trigeminal nerve
nerve that provides innervation to muscles of mastication
temporalis
masseter
medial pterygoid
lateral pterygoid
muscles of mastication:
muscles of mastication
move the temporomandibular joint
temporalis
elevate and retract the mandible
masseter
elevate the mandible
medial pterygoid
elevate and protrude the mandible
lateral pterygoid
depress and protrude the mandible
