Ryan accidentally drops a very heavy object on his foot. In a matter of just a few seconds, he feels a tremendous amount of pain. He experienced the pain quickly because neurons rapidly carries the impulse to the brain. Which structure of the neuron is responsible for the quick transmission of a nerve impulse?

Question

Kaden Cummings

Biology

Today, 15:28

Ryan accidentally drops a very heavy object on his foot. In a matter of just a few seconds, he feels a tremendous amount of pain. He experienced the pain quickly because neurons rapidly carries the impulse to the brain. Which structure of the neuron is responsible for the quick transmission of a nerve impulse?

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Answers (2)

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Nikhil Smith · Answer 1

This response is part of the reflex arc. Reflex is an involuntary, fast response to stimuli and it includes the sensory (afferent) neuron that forms a synapse inside the gray matter of spinal cord with a motor (efferent) neuron of the effector. The structure of the neuron that is This response is part of the reflex arc. Reflex is an involuntary, fast response to stimuli and it includes the sensory (afferent) neuron that forms a synapse inside the gray matter of spinal cord with a motor (efferent) neuron of the effector. The structure of the neuron that is responsible for the quick transmission of a nerve impulse is myelin sheath.

Velez · Answer 2

Myelin sheath

Explanation:

Neurons are covered with a fatty sheath called myelin sheath. The nodes of Ranvier are the part of the neuron surface where the myelin sheath is absent. In the presence of myelin sheath, the nerve impulse jumps from one node to another node which in turn speeds up its conduction.

The nerve impulse is not carried to the entire length of the axon in the presence of myelin sheath.