Anatomy of nerves/foramen

Question 1

Three muscles that interact with the dura

Answer 1

1) rectus capitus posterior major
2) rectus capitus posterior minor
3) obliquus capitus inferior

Question 2

Cranial nerves associated with jugular foramen

Answer 2

9 - glossopharyngeal
10 - vagus n.
11 - spinal accessory n.

Question 3

Cranial nerve associated with hypoglossal canal

Answer 3

12- hypoglossal

Question 4

Dysfunctions associated with compression of the jugular foramen (in pediatrics) (3 things)

Answer 4

1) tongue motion (CN 9)
2) intestinal peristalsis (CN 10)
3) SCM/trapezius motion/torticollis (CN 11)

Question 5

What skull area is most commonly dysfunctional in infants?

Answer 5

occiput

Question 6

what CNs does occipital dysfunction affect?

Answer 6

9, 10, 11, 12 (from jugular foramen and hypoglossal canal)

Question 7

In infants, what skull bone is commonly dysfunctional and affects most of the cranial nerves?

Answer 7

Temporal bone (usually internally rotated)

Question 8

What cranial nerves are frequently affected by operative vaginal delivery (forceps/vacuum)?

Answer 8

CN 6 –> lateral rectus palsy

CN 7 –> facial palsy

Question 9

foramen for olfactory nerve

Answer 9

cribriform plate

Question 10

foramen for optic nerve

Answer 10

optic canal

Question 11

foramen for oculomotor nerve

Answer 11

superior orbital fissure

Question 12

foramen for trochlear nerve

Answer 12

superior orbital fissure

Question 13

foramen for trigeminal nerve

Answer 13

V1- superior orbital fissure
V2- foramen rotundum
V3- foramen ovale

Question 14

foramen for abducens nerve

Answer 14

superior orbital fissure

Question 15

foramen for facial nerve

Answer 15

• internal acoustic meatus
• facial canal
• stylomastoid foramen

Question 16

foramen for vestibulocochlear nerve

Answer 16

internal acoustic meatus

Question 17

Dura attachment to sacrum

Answer 17

S2 at the Superior transverse (respiratory) axis

Question 18

Where does the eustachian tube exit?

Answer 18

between the sphenoid and temporal bones