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ATI TEAS 6 - Neuromuscular System (pictures)

Terms in this set (81)

- 12 pair originating from undersurface of
brain & exiting from the cranial cavity
through skull openings
- numbered for the order in which they
emerge from anterior to posterior
- named in relation to their function or
distribution

- I, II, & VIII are sensory
- III, IV, VI, XI, & XII, except for some
proprioceptive function, are primarily motor
- V, VII, IX, & X have mixed functions - both
motor & sensory
I. Olfactory
- smell
- identifying familiar odors
II. Optic
- sight or Vision
- visual acuity
III. Oculomotor
- levator of eyelid; superior, medial, and
inferior recti; inferior oblique muscles of
eyeball
- upward, downward, & medial gaze,
reaction to light
IV. Trochlear
- superior oblique muscle of eyeball
- downward and lateral gaze
V. Trigeminal
- touch, pain
- skin of face, scalp behind the ears, mucous
membranes of nose, sinuses, mouth,
anterior tongue
- muscles of mastication
- corneal reflex, facial sensation, teeth
clenching; chewing
VI. Abducens
- lateral rectus muscle of eyeball
- lateral gaze
VII. Facial
- taste
- touch, pain
- facial muscles
- lateral gaze, facial expressions, identifying
familiar tastes with front of tongue
VIII. Vestibulocochlear (Acoustic Nerve)
- hearing, balance/equilibrium
- detecting presence of sounds, balance &
coordination
IX. Glossopharyngeal
- touch, pain
- taste
- muscles of pharynx
- gag reflex, swallowing
X. Vagus
- touch, pain
- muscles of palate, pharynx, & larynx
- gag reflex, swallowing, speech
XI. Accessory
- sternocleidomastoid & trapezius muscle
- shoulder shrugging, head movement
XII. Hypoglossal
- muscles of tongue
- tongue movements