Meninges and CSF Pathway Flashcards Preview

[OS 202] Lecture Exam A > Meninges and CSF Pathway > Flashcards

Flashcards in Meninges and CSF Pathway Deck (29):
1

Is the brain a solid or hollow organ?

Hollow

2

What is at the center of the brain?

Water

3

What structure allows the communication between the third ventricle and lateral ventricle?

Foramen of Monroe

4

What does the third ventricle look like?

Kinda like a dead chicken head

5

What is beside the THalamus?

THe THird Ventricle

6

What is the only ventricle found in the cerebellum?

The Fourth Ventricle

7

What connects the third and fourth ventricles?

Aqueduct of Sylvius at the midbrain

8

CSF from the 4th Ventricle Exits? (2)

Lushke: Lateral
Magendie: Medial

9

Complete Pathway of CSF

Cerebrum -> Lateral Ventricle -> Foramen of Monroe -> 3rd Ventricle -> Aqueduct of Sylvius -> 4th Ventricle -> Foramen of Lushke and Magendie

10

What forms the roof of the lateral ventricle?

Corpus Callosum

11

What separates the two lateral ventricles?

Septum Pellucidum

12

Where is the Septum Pellucidum attached?

Fornix

13

What is beneath the Fornix?

Foramen of Monroe

14

What forms the lateral wall of the lateral ventricles?

Caudate Nucleus

15

Is there CSF going through the Pons?
Is there CSF going through the Medulla?
Is there CSF going through the Spine?

No
No
Duh

16

What makes CSF?

Choroid Plexus

17

Where does the formed CSF go?

Subarachnoid Space

18

Subarachnoid Space is between?

Arachnoid Mater and Pia Mater

19

Where is the Circle of Willis found?

Subarachnoid Space

20

What is the biggest cistern of the subarachnoid?

Cisterna Magna

(Also the only "important" one, the others are nice to know)

21

How much CSF is made in a day?
What is the total volume of CSF?

500mL/d
Total Volume: 100-160 mL

22

Function of CSF

Cushions and nourishes brain

23

Excessive CSF in the brain is called?

Hydrocephaly

24

Name 3 Brain Protectors

1. Meninges
2. CSF
3. Blood Brain Barrier

25

What separates the cerebrum from the cerebellum?

Tentorium

26

[Falx Cerebri]

Shape?
Attached to?

Sickle-shaped

Attached to the crista galli anteriorly and tentorium posteriorly

27

Where is the Falx Cerebelli?

Small dural reflection in between the cerebellar hemispheres

28

Location of the Diaphragma Sellae

Separates the sella turcica from everything else

29

[Venous Drainage]

Pathway

Superior Sagittal Sinus -> Transverse Sinus -> Sigmoid Sinus -> Jugular Vein