PHYSIOLOGY
MUSCLE CONTRACTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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By diffusing across the synaptic cleft
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By jumping across the synaptic cleft
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Teleportation
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By sliding across the synaptic cleft attached to a protein
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Detailed explanation-1: -Neurotransmitters diffuse across the synaptic cleft and bind to receptor molecules on the postsynaptic membrane. Receptor activation results in either the opening or the closing of ion channels in the membrane of the postsynaptic neuron, which alters the cell’s permeability.
Detailed explanation-2: -Once released by the synaptic terminal, ACh diffuses across the synaptic cleft to the motor end plate, where it binds with ACh receptors. As a neurotransmitter binds, these ion channels open, and Na+ ions cross the membrane into the muscle cell.
Detailed explanation-3: -A message travels from the dendrites through the cell body and to the end of the axon. into the synapse. The neurotransmitters carry the message with them into the synapse. The synapse is the space between the axon of one neuron and the dendrites of another neuron.