EXAM 4 (BMS 208 UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

EXAM 4 (BMS 208 UPDATED ACTUAL QUESTIONS AND
CORRECT ANSWERS

Question:
1. Meninges (definition, function, vascularized or not, layers)
Answer:
> Specialized connective tissue membranes that surround the CNS > Function - stability and support >
Vascularized > Consists of 3 layers: >> Dura mater >> Arachnoid mater >> Pia mater

Question:
2. Dura Mater
Answer:
"tough mother", outside layer > Meninges

Question:
3. Arachnoid Mater
Answer:
middle layer, includes epithelium arranged like a spider web > Meninges

Question:
4. Pia Mater
Answer:
inside layer, delicate tissue that is directly bound to the underlying neural tissue > Meninges

Question:
5. Dural Folds (4)
Answer:
> Falx cerebri > Tentorium cerebelli > Falx cerebelli > Dural sinus




Question:
6. Falx Cerebri
Answer:
Projects into longitudinal fissure

,Question:
7. Tentorium Cerebelli
Answer:
"tent" over cerebellum > right on top of cerebellum




Question:
8. What is a double layer that becomes pockets of blood?
Answer:
Dural folds




Question:
9. Falx Cerebelli
Answer:
Divides left and right cerebellar hemispheres

,Question:
10. Dural Sinus
Answer:
Blood-filled spaces between the periosteal and meningeal layers of the dura mater




Question:
11. Ventricular System
Answer:
Hollow chambers in the brain and brainstem that are filled with cerebrospinal fluid




Question:
12. How many ventricles are there?

, Answer:
Four




Question:
13. The ventricular system includes...
Answer:
2 lateral ventricles, third ventricle, and fourth ventricle > They are contiguous (connected)




Question:
14. What are ventricles?
Answer:
Holes/chambers in brain that house cerebral spinal fluid

Question:
15. CSF
Answer:
Cerebrospinal fluid - filtrate of blood