Which of the following statements about cerebrospinal fluid is incorrect?
a. forms at the choroid plexuses and is reabsorbed across the arachnoid villi into the blood within the dural sinuses
b. serves as a shock-absorbing fluid to cushion the brain against jarring movements
c. comes into direct contact with neurons
d. fills the subarachnoid space
e. influences the composition of the brain interstitial fluid more than the blood does
C
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The motor neuron pool of a skeletal muscle consists of the neurons of all of the motor units of that muscle.
Answer the following statement true (T) or false (F)
_____________________ are mature breeding fish used for breeding and reproduction
Fill in the blank(s) with correct word
Which is TRUE about the resting membrane potential?
A. It requires very few ions to be distributed unevenly. B. It has the same value in all cells. C. It is oriented so that the cell's interior is positive with respect to the extracellular fluid. D. Only nerve and muscle cells have a potential difference across the membrane at rest. E. It is not altered by changing concentration gradients of permeating ions.
With secondary active transport, the movement of
a. Na+ into the cell by the cotransport carrier is downhill. b. Na+ into the cell by the cotransport carrier is uphill. c. glucose by the cotransport carrier is uphill. d. two of these answers. e. none of these answers.