Lab Practical 3

Question 1

CNI

Answer 1

Olfactory
Sensory
Exit: cribiform plate
F(x): Smell sensory

Question 2

CN II

Answer 2

Optic
Sensory
Exit: Optic Canal
f(x): sensory vision

Question 3

CN III

Answer 3

Oculomotor
motor
E: Sup Orbital Fissure
f(x): S, I, Add eye, constrict pupil

Question 4

CN IV

Answer 4

Trochlear
Motor
E: Sup Orbital Fissure
f(x) abd, dep, int rotation of eye

Question 5

CN V

Answer 5

Trigeminal
Both S&M
E: Sup Orb Fiss, Foramen Rotundum, For Ovale
f(x): face sensory, motor mastication
Parasympathetic

Question 6

CN VI

Answer 6

Abducens
Motor
Sup Orb Fissure
Abduct eye

Question 7

CN VII

Answer 7

Facial
Both S&M
Int Acoustic Meat & Stylomastoid foramen
F(x): S- taste, tears, salivate
M-facial expression
Parasympathetic

Question 8

CN VIII

Answer 8

Vestibulocochlear
Sense
Internal Acoustic Meatus
Hearing & Balance

Question 9

CN IX

Answer 9

Glossopharyngeal
Both S&M
Jug Foramen
f(x) S-taste
M-Pharynx salivate
Parasympathetic

Question 10

CN X

Answer 10

Vagus Nerve
Both S&M
Jug Foramen
f(x): thoracic & abd cavities
Parasympathetic

Question 11

CN XI

Answer 11

Spinal Accessory
Motor
Jug Foramen
neck & back (SCM & traps)

Question 12

CN XII

Answer 12

Hypoglossal
Motor
Hypoglossal Canal
f(x) tongue