MUSCLE NERVE CARTILAGE BONE
SKELETAL MUSCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -The given statement is true. The communication between the muscle cells and neurons occurs via the release of neurotransmitters such as acetylcholine (ACh).
Detailed explanation-2: -The effect of a neurotransmitter on the muscle cell membrane is to temporarily modify its permeability of ions such as Na+ and K+. When a muscle fiber contracts, the I bands diminish in size, the H zones disappear, and the A bands move closer together but do not diminish in length.
Detailed explanation-3: -Acetylcholine (ACh) is a neurotransmitter released by motor neurons that binds to receptors in the motor end plate. Neurotransmitter release occurs when an action potential travels down the motor neuron’s axon, resulting in altered permeability of the synaptic terminal membrane and an influx of calcium.
Detailed explanation-4: -[3][4] The Na+K+-ATPase pump helps to maintain osmotic equilibrium and membrane potential in cells.