PHYSIOLOGY
CENTRAL NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which type of neuron causes a muscle to contract in a reflex arc?
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Motor Neuron
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Sensory Neuron
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Interneuron
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Effector
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Explanation:
Detailed explanation-1: -Alpha motor neurons (also called lower motor neurons) innervate skeletal muscle and cause the muscle contractions that generate movement. Motor neurons release the neurotransmitter acetylcholine at a synapse called the neuromuscular junction.
Detailed explanation-2: -The sensory neuron enters the spinal cord via the dorsal root and synapses with a relay neuron in the grey matter. The relay neuron synapses with a motor neuron, which leaves the spinal cord via the ventral root.
Detailed explanation-3: -Reflex arc involves only three types of neurons sensory, motor, and relay neurons.
There is 1 question to complete.