Lab Practical 4

Question 1

CN 1

Answer 1

Olfactory - sensory - smell

Question 2

CN2

Answer 2

Optic - Sensory - vision

Question 3

CN3

Answer 3

Oculomotor - primarily motor - motor impulses to superior, inferior and medial rectus and inferior oblique muscles of eye, adjust light, focus lens, raise eyelid

Question 4

CN4

Answer 4

Trochlear - primarily motor - motor impulses to superior oblique muscles that move the eye

Question 5

CN5

Answer 5

Trigeminal - mixed -

Ophthalmic- eyes, tears, scalp, forehead, upper eye lid

Maxillary- upper teeth, upper gum, upper lip, palate, facial skin

Mandibular- scalp, skin of jaw, lower teeth, lower gum, lower lip. Motor impulses of mastication and muscles of floor of mouth

Question 6

CN6

Answer 6

Abducens - primarily motor - motor impulses to lateral rectus muscles of eye

Question 7

CN7

Answer 7

Facial - mixed - taste receptor of anterior tongue. Motor of facial expression, tear and salivary glands

Question 8

CN8

Answer 8

Vestibulocochlear - sensory

Vestibular branch- equilibrium

Cochlear branch- bearing

Question 9

CN9

Answer 9

Glossopharyngeal - mixed - pharynx tonsils, posterior tongue and carotid arteries. Motor impulses of salivary glands and pharynx used in swallowing

Question 10

CN10

Answer 10

Vagus - mixed - motor impulses to speech and swallowing; autonomic motor impulses of viscera of thorax and abdomen
Sensory from pharynx, larynx, esophagus and viscera of thorax and abdomen

Question 11

CN11

Answer 11

Accessory - primarily motor -

Cranial branch- motor to soft palate, pharynx and larynx

Spinal branch- motor to neck and shoulder

Question 12

CN12

Answer 12

Hypoglossal - primarily motor - motor impulses to muscles that move the tongue

Question 13

Olfactory 1 test

Answer 13

Sniff and recognize product

Question 14

Optic 2 test

Answer 14

Read time on wall clock; identify letters on snellen chart

Question 15

Oculomotor 3 test

Answer 15

Dropping eyelid, impaired eye movement, dilated pupil

Follow finger without moving head; flashlight in eye to see if pupils contract

Question 16

Trochlear 4 test

Answer 16

Impaired eye movement

Follow finger and see if I can be rotated

Question 17

Trigeminal 5 test

Answer 17

Loss of sensation of touch; hot, cold, pain in face; impaired jaw movement

Touch face in areas of branch of the nerve; open/close mouth, move jaw around

Question 18

Abducens 6 test

Answer 18

Loss of lateral eye movement

Follow finger to test for lateral eye movement

Question 19

Facial 7 test

Answer 19

Distorted taste on anterior region of tongue; dry eye and mouth; impaired facial muscle expression

Place sugar or salt on tip of tongue; smile and whistle

Question 20

Vestibulocochlear

Answer 20

Loss of balance/hearing

Walk a straight line; use tuning fork to test hearing

Question 21

Glossopharyngeal 9 test

Answer 21

Dry mouth; impaired swallowing; impaired taste on posterior tongue

Check ability to swallow and cough

Question 22

Cervical Plexus

Answer 22

C1-C5

PHRENIC NERVE

Question 23

Brachial plexus

Answer 23

C5-T1

Median Nerve

Question 24

Lumbar plexus

Answer 24

L1-L4

Femoral Nerve

Question 25

Sacral Plexus

Answer 25

L4-S4

Sciatic Nerve

Question 26

Coccygeal Plexus

Answer 26

S4-Co1

Femoral Nerve