Cerebrospinal Fluid

Question 1

what is cerebrospinal fluid?

Answer 1

clear fluid composed mostly of water produced by choroid plexus in the ventricles

Question 2

what are the three main functions of CSF?

Answer 2

mechanical protection
homeostasis
circulation

Question 3

what ions are transported from blood to CSF in CSF secretion?

Answer 3

sodium
chloride
bicarbonate

Question 4

how does the composition of CSF differ from that of plasma?

Answer 4

more Na and Cl

less K, glucose and protein

Question 5

what connects the lateral ventricles of the choroid plexus to the third ventricle?

Answer 5

interventricular foramina

Question 6

what connects the third ventricle of the choroid plexus to the fourth ventricle?

Answer 6

cerebral aqueduct

Question 7

what connects the fourth ventricle of the choroid plexus to the subarachnoid space?

Answer 7

foramina of magendie

Question 8

describe the flow of CSF from the ventricles to the spinal cord

Answer 8

CSF formed in lateral ventricle

third ventricle

midbrain

fourth ventricle

subarachnoid space

central canal of spinal cord