Regarding the concentration gradient,all of the following are true EXCEPT:
A) fluids across a membrane move from a higher to lower concentration
B) the concentration of sodium ions in the interstitial fluid balances the concentration gradient
C) protein ions in the intracellular fluid can permeate the neural cell membrane
D) interstitial fluid contains a higher concentration of water than intracellular fluid
E) sodium ions do not diffuse across the cell membrane
Correct Answer:
Verified
Q1: A neural impulse is transmitted across the
Q2: _is found in high concentration outside the
Q3: Channels in the cell membrane:
A)are always gated
B)help
Q5: An electrical synapse:
A)occurs at the synaptic cleft
B)occurs
Q6: Myelin:
A)is most common in smaller nerve fibers
Q7: Action potentials develop:
A)at the nodes of Ranvier
B)only
Q8: Axons of neurons:
A)vary greatly in number
B)are relatively
Q9: All of the following are characteristic of
Q10: A(n)_ potential is propagated from the cell
Q11: Which of the following is NOT a
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