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mihalych1998 [28]
3 years ago
14

Which statement is true regarding axons and dendrites?a) Action potentials travel along the axon. b) The dendrite terminal is th

e site where neurotransmitters are released into the synaptic cleft. c) Neurons generally possess more axons than dendrites. d) In a neuron, axons typically receive signals, and dendrites typically transmit or send signals.
Biology
1 answer:
suter [353]3 years ago
4 0

Answer:

Action potentials travel along the axon.

Explanation:

Action potential produces in four steps:

(1) Depolarization to the threshold.

(2) Activation of the Na+ channel and rapid depolarization.

(3) Inactivation of Na+ channel and activation of the K+ channel.

(4) Return to normal permeability.

The action potential travels by an unmyelinated axon. Their only 1 segment of the axon affects by the action potential. Then a local current helps to depolarize another segment to the threshold and again cycle repeats.

Another is an action potential travel by a myelinated axon. In this, the current is generated by the action potential and jumps from the node of Ranvier to the next segment.

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