PHYSIOLOGY
CENTRAL NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Transmit impulses from brain and spinal cords to muscles and glands directing action
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Carry Impulses from skin and organs to the spinal cord and brain about the external and internal environment
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Transmit impulses between other neurons
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None of the above
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Detailed explanation-1: -A neuron sending a signal (i.e., a presynaptic neuron) releases a chemical called a neurotransmitter, which binds to a receptor on the surface of the receiving (i.e., postsynaptic) neuron. Neurotransmitters are released from presynaptic terminals, which may branch to communicate with several postsynaptic neurons.
Detailed explanation-2: -Action Potential. An action potential, also called a nerve impulse, is an electrical charge that travels along the membrane of a neuron. It can be generated when a neuron’s membrane potential is changed by chemical signals from a nearby cell.
Detailed explanation-3: -nervous system Sensory cells carry afferent impulses to a central interneuron, which makes contact with a motor neuron.