A&p Practical 4

Front 1

1-Olfactory-I

Back 1

Origin and course: Olfactory Epithelium>Olfactory Bulb
-Sensory
-Smell
-Oil in vials

Front 2

2- Optic-II

Back 2

Origin and course: Retina of the eye to thalamus
-Sensory
-Vision
-Moving objects into field of vision

Front 3

3-Oculomotor-III

Back 3

Origin and course: Retina of eye to Thalamus
-motor
-eye movement
-penlight testing for pupil constriction

Front 4

4-Trochlear-IV

Back 4

Origin and course: Midbrain to eye muscle
-motor
-eye movement
-tested with oculomotor ability- following objects

Front 5

5-Trigeminal-V

Back 5

Origin and course:Pons to face
-Mixed
Sensory of face
Motor-mastication
-tested with corneal reflex by cotton wisp

Front 6

6- Abducens-VI

Back 6

Origin and course: Pons to eye muscle
Motor
Eye movement
Tested by having subject look laterally to the right

Front 7

7-Facial-VII

Back 7

Origin and course: Pons to face and tongue
-Mixed
sensory-taste
motor-facial expression
-tested with symmetry of face while smiling, whistling, and closing eyes

Front 8

8-vestibulocochlear-VIII

Back 8

Origin and course:Cochlea and vestibule to pons
-sensory
-hearing and equilibrium
-tuning for held near ear and then on mastoid process

Front 9

9-glossopharyngeal-IX

Back 9

Origin and course: Medulla oblongata to tongue and pharynx
-mixed
sensory-taste
motor-swallowing
test w/ swallow, voice, and gag

Front 10

10-vagus-X

Back 10

Origin and course: Medulla oblongata to thoracic and abdominal viscera
Mixed
-autonomic functions including heart, glands, and abdominal organs
-tested by saying AHH- should cause uvula to remain midline and pharynx to constrict medially

Front 11

11-accessory- XI

Back 11

Origin and course: Spinal cord (c1-c5) to neck muscles
-motor
-Neck movement
-tested by shrugging shoulders and rotate head left and right

Front 12

12-hypoglassal-XII

Back 12

Origin and course: Medulla oblongata to tongue
-motor
-tongue movement
-sticking out tongue -should not deviate to left or right