Cerebral Spinal Fluid

Question 1

Define cerebral spinal fluid

Answer 1

Filtered blood plasma that bathes brain and spinal cord providing nutrients

Question 2

Define choroid plexus

Answer 2

3 groups of blood capillaries in the ventricles that filters blood plasma into ependymal cells

• makes CSF

Question 3

Define ependymal cells

Answer 3

Cells found between the capillaries and the ventricles

Question 4

What are the 3 main ventricles in the brain?

Answer 4

Lateral ventricle, 3rd ventricle and 4th ventricle

Question 5

Step 1 of CSF flow

Answer 5

Oxygenated blood leaves heart through arteries and goes into lateral ventricle, 3rd ventricle, and 4th ventricle’s choroid plexuses

Question 6

Step 2 of CSF flow

Answer 6

CSF leaves choroid plexuses and goes into lateral ventricle

Question 7

Step 3 of CSF flow

Answer 7

CSF leaves lateral ventricle, goes through interventricular foramen and stops at 3rd ventricle

Question 8

Step 4 of CSF flow

Answer 8

CSF leaves 3rd ventricle through the cerebral aqueduct and goes to the 4th ventricle

Question 9

Step 5 of CSF flow

Answer 9

CSF leaves 4th ventricle and goes up and down spinal cord

Question 10

Step 6 of CSF flow

Answer 10

CSF leaves 4th ventricle through the lateral and medial apertures and goes to subarachnoid space

Question 11

Step 7 of CSF flow

Answer 11

CSF leaves subarachnoid space and goes to the arachnoid villi of the dural venous sinuses

Question 12

Step 8 of CSF flow

Answer 12

CSF leaves the arachnoid villi of the dural venous sinuses and becomes deoxygenated blood which goes back to heart and lungs