Cerebrospinal Fluid And Flowrate

Question 1

Choroid plexus

Answer 1

Network of tangled blood vessels and ependymal cells

Question 2

Choroid plexus production rate and average amount

Answer 2

800 mL per day

Depending on size of body, 150-200 mL present at one time

Question 3

Lateral ventricles

Answer 3

Two c-shaped ventricles in each hemisphere of brain

Question 4

What allows CSF to flow out of lateral ventricles?

Answer 4

Interventricular foramen of monro

Question 5

3rd ventricle

Answer 5

Space enclosed by thalamus and hypothalamus

Question 6

Passageway from 3rd ventricle to 4th ventricle

Answer 6

Cerebral aqueduct of Sylvius

Question 7

4th ventricle

Answer 7

Triangular cavity near cerebellum

Question 8

How does CSF exit the 4th ventricle?

Answer 8

Median and lateral apertures

Question 9

Central canal

Answer 9

Tiny hole down very middle of spinal cord

CSF flows here from median and lateral apertures

Question 10

Subarachnoid space

Answer 10

Space below arachnoid mater

CSF flows to posterior side from median and lateral apertures

Question 11

How does CSF return to brain?

Answer 11

Flows up the anterior side of subarachnoid space

Question 12

CSF end point

Answer 12

Duralsinus blood vessels and duralsinus

Question 13

Flowrate

Answer 13

Lateral ventricles
Interventricular foramen of monro 
3rd ventricle 
Cerebral aqueduct of Sylvius 
4th ventricle 
Median and lateral apertures 
Central canal and posterior subarachnoid space 
Anterior subarachnoid space to dural sinus