Cerebrospinal Fluid Flashcards Preview

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Flashcards in Cerebrospinal Fluid Deck (6)
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1

What is cerebrospinal fluid?

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

2

What are the 3 main functions of CSF?

Mechanical protection (shock absorb)
Homeostasis (pH)
Circulation (medium for gas/nutrient exchange)

3

CSF secretion involves the transport of which ions from blood to CSF?

Na
Cl
HCO3

4

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

More Na, Cl
Less K, glucose, protein

5

How are the ventricles of the choroid plexus connected?

Lateral ventricle-3rd ventricle: intraventricular foramina
3rd-4th ventricle: cerebral aqueduct
4th ventricle-subarachnoid space: foramina of magendie
4th ventricle-subarachnoid space: foramina of luschka

6

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

CSF formed in lateral ventricle;
flow to 3rd ventricle;
flow to midbrain;
flow to 4th ventricle;
flow to subarachnoid space;
flow to central canal of spinal cord