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Nerve Impulse

name of the c...

Question

name of the chemical which is present at the synapse and helps in transferring of electrical impulses from one neuron to other.

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Solution

Neurotransmitters facilitate the signal transmission across chemical synapses.

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Q. Question 21
Which of the following statements about transmission of nerve impulse is incorrect?

(a) Nerve impulse travels from dendritic end towards axonal end.
(b) At the dendritic end electrical impulses bring about the release of some chemicals which generate an electrical impulse at the axonal end of another neuron.
(c) The chemicals released from the axonal end of one neuron cross the synapse and generate a similar electrical impulse in a dendrite of another neuron.
(d) A neuron transmits electrical impulses not only to another neuron but also to muscle and gland cells.

Q. Which of the following statements is/are incorrect about the electrical synapse?
(i) At electrical synapses, the membranes of pre and post synaptic neurons are in very close proximity.
(ii) Electrical current can flow directly from one neuron into the other across the synapses.
(iii) Transmission of an impulse across electrical synapses is very similar to impulse conduction along single axon.
(iv) Electrical synapses pass electrical signal between cells with the use of Ach.
(v) Electrical synapses are fast.
(vi) Electrical synapses are rare in our system.

Q. Chemical transmission of nerve impulses from one neuron to another is by

Q. Impulse transmission across an electrical synapse compared to chemical synapse is always:

Q. What is synapse? Ina neuron cell how is an electrical impulse created and what is the role of synapse in this context?

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