Cranium To The Ventricles

Question 1

Cranial Fossa

Answer 1

Anterior, middle, posterior

Question 2

Brain packaging

Answer 2

Bones

Membranes (meninges)

Fluid cushioning

Question 3

Meninges 3 layers (Dura Matter)

Answer 3

Toughest outermost layer

Surrounds entire brain

Question 4

Meninges 3 layers (Arachnoid membrane)

Answer 4

Delicate middle layer

Connective tissue and squamous epi cells

Extends moderately into sulci

Question 5

Meninges 3 layers (Pia matter)

Answer 5

Barely visible to an unaided eye

Highly vascularized w/ capillaries and small blood cells

Extends deep into all

Question 6

Cerebrospinal fluid

Answer 6

Removal of waste

CSF is replaced 3x every 24 hours

Circulates in the ventricles and subarachnoid space

Question 7

Ependymal cells

Answer 7

Glial cell

Production and regulation of CSF

Question 8

4 ventricles

Answer 8

2 lateral

3rd ventricle (midline) connected by cerebral aqueduct

4th ventricle is the brainstem

Question 9

Cerebral Aqueduct (aqueduct of Sylvius)

Answer 9

Connects the 3rd ventricle to the 4th