Meninges and CSF Pathway

Question 1

Is the brain a solid or hollow organ?

Answer 1

Hollow

Question 2

What is at the center of the brain?

Answer 2

Water

Question 3

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

Answer 3

Foramen of Monroe

Question 4

What does the third ventricle look like?

Answer 4

Kinda like a dead chicken head

Question 5

What is beside the THalamus?

Answer 5

THe THird Ventricle

Question 6

What is the only ventricle found in the cerebellum?

Answer 6

The Fourth Ventricle

Question 7

What connects the third and fourth ventricles?

Answer 7

Aqueduct of Sylvius at the midbrain

Question 8

CSF from the 4th Ventricle Exits? (2)

Answer 8

Lushke: Lateral
Magendie: Medial

Question 9

Complete Pathway of CSF

Answer 9

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

Question 10

What forms the roof of the lateral ventricle?

Answer 10

Corpus Callosum

Question 11

What separates the two lateral ventricles?

Answer 11

Septum Pellucidum

Question 12

Where is the Septum Pellucidum attached?

Answer 12

Fornix

Question 13

What is beneath the Fornix?

Answer 13

Foramen of Monroe

Question 14

What forms the lateral wall of the lateral ventricles?

Answer 14

Caudate Nucleus

Question 15

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

Answer 15

No
No
Duh

Question 16

What makes CSF?

Answer 16

Choroid Plexus

Question 17

Where does the formed CSF go?

Answer 17

Subarachnoid Space

Question 18

Subarachnoid Space is between?

Answer 18

Arachnoid Mater and Pia Mater

Question 19

Where is the Circle of Willis found?

Answer 19

Subarachnoid Space

Question 20

What is the biggest cistern of the subarachnoid?

Answer 20

Cisterna Magna

Also the only “important” one, the others are nice to know

Question 21

How much CSF is made in a day?

What is the total volume of CSF?

Answer 21

500mL/d

Total Volume: 100-160 mL

Question 22

Function of CSF

Answer 22

Cushions and nourishes brain

Question 23

Excessive CSF in the brain is called?

Answer 23

Hydrocephaly

Question 24

Name 3 Brain Protectors

Answer 24

1. Meninges
2. CSF
3. Blood Brain Barrier

Question 25

What separates the cerebrum from the cerebellum?

Answer 25

Tentorium

Question 26

[Falx Cerebri] Shape? Attached to?

Answer 26

Sickle-shaped Attached to the crista galli anteriorly and tentorium posteriorly

Question 27

Where is the Falx Cerebelli?

Answer 27

Small dural reflection in between the cerebellar hemispheres

Question 28

Location of the Diaphragma Sellae

Answer 28

Separates the sella turcica from everything else

Question 29

[Venous Drainage] Pathway

Answer 29

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