Which of these statements describes cerebrospinal fluid
A)It is formed primarily by the choroid plexuses.
B)It is located in subdural space.
C)Its composition is the same as plasma.
D)Its volume is about 500 mL.

Question

Quizplus · Accepted Answer

Cerebrospinal fluid is primarily formed by the choroid plexuses, which are located in the ventricles of the brain.

B, C, and D are all incorrect statements. The cerebrospinal fluid is located in the subarachnoid space, not the subdural space. Its composition is not the same as plasma, as it contains fewer proteins and more sodium and chloride ions. Finally, the volume of cerebrospinal fluid in an adult is typically around 150 mL, not 500 mL.

Which of These Statements Describes Cerebrospinal Fluid