NA4

Question 1

Cribiform plate

Answer 1

Cranial nerve 1: opthalmic nerve
No vasculature
Weak spot

Question 2

Optic canal

Answer 2

Opthalmic artery

Cranial nerve 2- optic nerve

Question 3

Superior orbital fissure

Answer 3

Cranial nerves 3,4,6 (occulomotor, trochlear, abducens), branch V1 of trigeminal nerve

Question 4

Foramen rotundum

Answer 4

Cranial nerve v2

Question 5

Foramen ovale

Answer 5

Cranial nerve V3

Question 6

Foramen spinosum

Answer 6

Middle menigeal artery

Question 7

Carotid canal

Answer 7

Internal carotid artery

Carotid nerve plexus

Question 8

Internal acoustic meatus

Answer 8

Cranial nerves 7, 8
Facial nerve
Vestibulocochlear nerve

Question 9

Stylomastoid foramen

Answer 9

Stylomastoid artery

Cranial nerve 7- facial nerve

Question 10

Jugular foramen

Answer 10

Sigmoid sinus, jugular vein
Cranial nerves 9,10,11
Glossopharyngeal 
Vagus
Spinal accessory

Question 11

Hypoglossal canal

Answer 11

Cranial nerve 12: hypoglossal nerve

Question 12

Foramen magnum

Answer 12

Vertebral arteries

Cranial nerve 11: spinal accessory

Question 13

Sympathetic nervous system

Answer 13

Autonomic
Two neurons, uses norepinephrine
Arise in spinal cord T1-L2
Presynaptic cell bodies in lateral grey horns
Post synaptic cells bodies in sympathetic chain ganglia

Question 14

Parasympathetic nervous system

Answer 14

Autonomic
Two neurons, acetylcholine as neurotransmitter
Presynaptic Cell bodies in brain stem nuclei or S2-S4 of spinal cord
Postsynaptic in walls of target organs

Question 15

Visceral afferent sensory

Answer 15

Pain, travels beside sympathetic motor fibers, so may be felt in different location (referred pain)