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Nerve Impulse Conduction

what is acety...

Question

what is acetylcholine and motor end plate?

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Solution

Acetylcholine is an organic compound that acts as neurotransmitter in several organisms including human. It is present throughout the nervous system.
The flattened end of motor neuron that transmits impulses to the muscles is known as motor end plate.

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Q. Acetylcholine is a neurotransmitter that is important in the transmission of signals from the motor neurons to the muscles.
Which of the following describes the action of acetylcholine?

Q. Which statements about muscle contractions are true?
(i) Acetylcholine is released when neural signal reaches motor end plate
(ii) Muscle contraction is initiated by a signal sent by CNS via a sensory neuron
(iii) During muscle contraction, isotropic band gets elongated
(iv) Repeated activation of the muscle can lead to lactic acid accumulation.

Q. Motor end plate is a -

Q. Assertion :Acetylcholine is a predominant neurotransmitter. Reason: It occurs in vertebrates, cholinergic effector organs, postganglionic parasympathetic nerve endings and preganglionic sympathetic nerve endings

Q. What is common between (i) acetylcholine (ii) noradrenaline (iii) serotonin?

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