Read each description below and determine whether or not it describes a function or property of cerebrospinal fluid. Identify which of the followings are true or false. a. Produces antibodies in response to antigen exposure in the brain tissue
b. Found in the ventricles of the heart and brain
c. Produced by the choroid plexus
d. Blocks blood toxins from brain tissue
e. Prevents concussions
f. Cardiac muscle contractions influence the flow of CSF
g. Compared to levels in the blood plasma, the CSF is higher in glucose.
h. Effectively decreases the brain's weight
i. Supplies oxygen to the brain tissue
j. Maintains the concentration of glycine surrounding the brain

Produced by the choroid plexus -T.This is the major secretion site.It is also produced in smaller quantities in the interstitial compartment.

Blocks blood toxins from brain tissue-F, that is the job of  the blood brain barrier(BBB).

Supplies oxygen to the brain tissue-T.This gas is dissolved  in the CSF together with CO2 for distribution among nervous tissues by the CSF

Maintains the concentration of glycine surrounding the brain-T

Found in the ventricles of the heart and brain-False,it does not reach the heart ventricles.This are occupied by blood.

Prevents concussions-T

Produces antibodies in response to antigen exposure in the brain tissue-False.These are produced by the B-cells, not by in the CSF,based on the  specif antigen stimulation.

Effectively decreases the brain's weight-T It reduces the weight of the brain.This is done by the buoyancy it provided for the brain.

Compared to levels in the blood plasma, the CSF is higher in glucose-F.This is wrong, the glucose of the blood plasma is higher.But equal sodium ion,more chloride in CSF, and less protein.It s levels is a relefection of blood glucose.Although it may lag 2-4hrs in the CSF.

It prevents concussion,(T)and and the contraction of cardiac muscles propels its movement(T).

Explanation:

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