Block 1 orientation to the cranium

Question 0

What is the superficial temporal artery a branch of?

Answer 0

External corotid

Question 1

Where are the veins in the scalp and what are they called

Answer 1

Emissary veins in the connective tissue

Diploic veins in between layers of compact bone

Question 2

What is the vein that travels with the superficial temporal nerve and what is it a branch of?

Answer 2

The auriculotemporal nerve, from the mandibular branch of the trigeminal nerve CN IV

Question 3

What is the middle meningeal artery a branch of?

Answer 3

The maxillary artery

Question 4

What are the two layers of the dura?

Answer 4

Periostial and meningeal

Question 5

What is the falx cerebrii and what does it attach to?

Answer 5

A divider of the hemispheres made of the meningeal layer of the dura attached to the crista galli of the ethmoid bone.

Question 6

What are the three dividing menings (dural reflections) of the brain?

Answer 6

Falx cerebrii dividing the cerebral hemispheres
Tentorium cerebrii dividing the cerebellum from the cortex
Falx cerebelli indenting the posterior part of the cerebellum

Question 7

What are the region of the skull cavity?

Answer 7

Above the Tentorium cerebrii is the supratentorial region, below is the infratentorial region

Question 8

What is an extradural hematoma?

Answer 8

Occurs between dura and bone, involves rupture of a meningeal artery
Looks like a balloon, nice and round

Question 9

What is a subdural hematoma?

Answer 9

Occurs between dura and arachnoid membrane. Involves rupture of cerebral vein. Looks very random, all over the brain

Question 10

What is a subarachnoid hematoma?

Answer 10

Occurs between subarachnoid and pia, involves rupture of cerebral artery.

Question 11

How many cranial fossas are there?

Answer 11

Three. Anterior, middle, and posterior.

Question 12

Where does the middle meningeal artery pass through?

Answer 12

The foramen spinosum

Question 13

Where are the cerebral veins located?

Answer 13

Pial layer

Question 14

Name the vessel with each hematoma:
Extradural
Subdural
Subarachnoid

Answer 14

Meningeal artery
Cerebral vein
Cerebral artery

Question 15

What passage does the facial nerve pass through?

Answer 15

Stylomastoid process

Question 16

Where does the facial nerve exit the cranial cavity?

Answer 16

Internal auditory meatus

Question 17

What three cranial nerves pass through the jugular foramen?

Answer 17

IX, X, XI.

Glossopharygeal, vagus, spinal accessory.

Question 18

Where is the sigmoid sinus?

Answer 18

Comes down off the transverse sinus