The nerve impulse moves along the neuron because
A) a current flows along the cell.
B) sodium ions flow from one end of the cell to the other.
C) there is a high concentration of sodium ions at one end of the cell and a high concentration of potassium ions at the other end of the cell.
D) depolarization of one portion of the nerve cell membrane changes the permeability of the adjacent portion of the membrane, allowing it to depolarize as well.
Correct Answer:
Verified
Q5: Motor neurons
A) send messages to the brain.
B)
Q6: A neuron and a nerve differ in
Q7: Which of the following occurs during a
Q8: The voltage of 70 millivolts that exists
Q9: Depolarization of the nerve cell membrane occurs
Q11: Which of the following is a neurotransmitter?
A)
Q12: A synapse is
A) part of a neuron.
B)
Q13: Neurotransmitters like acetylcholine
A) are manufactured in the
Q14: Neurotransmitters like acetylcholine
A) are released from axons.
B)
Q15: The nervous system is most similar to
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