Assertion : Transmission of nerve impulse acr | vedclass

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(A) Step $1$: The transmission of nerve impulses across a synapse is mediated by chemical substances known as neurotransmitters.Step $2$: This is nece

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If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

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(A) Step $1$: The transmission of nerve impulses across a synapse is mediated by chemical substances known as neurotransmitters.Step $2$: This is necessary because neurons are not physically continuous; they are separated by a microscopic gap called the $synaptic \ cleft$.Step $3$: When an action potential reaches the presynaptic terminal, it triggers the release of neurotransmitters into the $synaptic \ cleft$.Step $4$: These neurotransmitters diffuse across the cleft and bind to receptors on the postsynaptic membrane, thereby propagating the nerve impulse to the next neuron.Step $5$: Thus, the Reason correctly explains why neurotransmitters are required for synaptic transmission.

Assertion : Transmission of nerve impulse across a synapse is accomplished by neurotransmitters.
Reason : Transmission across a synapse usually requires neurotransmitters because there is a small space, i.e., $synaptic \ cleft$, that separates one neuron from another.

Similar Questions

True about electrical synapses:
$(I)$. Pre and postsynaptic neurons are in very close proximity.
$(II)$. Pre and postsynaptic neurons are separated by a synaptic cleft.
$(III)$. Impulse transmission is very fast.
$(IV)$. Electrical synapses are common in our system.
Select the correct option.

What does the enzyme acetylcholinesterase break down acetylcholine into?

Explain:
$(1)$ Electrical Synapse
$(2)$ Chemical Synapse

Define/Explain the following terms:
$(1)$ Synapse
$(2)$ Node of Ranvier

What is responsible for the unidirectional transmission of nerve impulses in a neuron?

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Assertion : Transmission of nerve impulse across a synapse is accomplished by neurotransmitters.Reason : Transmission across a synapse usually requires neurotransmitters because there is a small space, i.e., $synaptic \ cleft$, that separates one neuron from another.