Optic Nerves

I.) Olfactory

(s) smell

II.) Optic

(s) vision

III.) Oculomotor

(m) eyelid, eye movement, control iris/lense

IV.) Trochlear

(m) movement of eye

V.) Trigeminal

(mx) sensory - tear production, touch, scalp, and face)

Motor - chewing

VI.) Abdueen

(m) eye muscle movement

VII.) Facial

(mx) sensory - taste

motor - facial expression, tears, salivary gland

VIII.) Vestibulocochlear

(s) sense of balance and hearing

IX.) Glossopharyngeal

(mx) sensory - pharuns, tonsils, tongue, carotid artery

motor- salivary gland, muscle pharynx, swallowing

X.) Vagus

(mx) sensory/autonomic - viscera of thorax and abdomen

motor/somatic - speech and swallowing

XI.) Accessory

(m) movement soft palate, pharynx, larynx, neck, and back

XII.) Hypoglossal

(m) tongue movement

What are the structures that protect the brain and spinal cord? give order and function for each

Cervical Plexus (C1-C5)

Phrenic nerve: diaphragm

Brachial Plexus (C5-T1)

Ulnar nerve: funny bone

Forearm-flex the hand (intrinsic hand muscle)

Sensory medial hand

Intercostal Nerves (T1-T11)

11 of them

Lumbar (T12-L4)

Femoral nerve

Motor sensor: saphenous knee joint medial foot leg foot

Femoral motor: anterior thigh extend knee, sensory skin thigh anterior/medial)

Sacral (L4-S4)

Sciatic nerve: largest in body

• tibial nerve: flex leg; plantar flex foot

  • Branch: sural nerve

• Common fibulae nerve: superficial& deep → intrinsic foot dorsiflex)

  • Branch: sensory off tibial skin posterior leg/foot)