PATHOLOGY MCQ
NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Myelin is found on every neuron
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Is found on the axon
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Appears white
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Speeds up neurotransmission
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Detailed explanation-1: -Answer and Explanation: The correct answer is C. Myelin does not cover cell bodies in the brain and spinal cord. Myelin is a sheath that covers the axons of nerves in the brain and spinal cord.
Detailed explanation-2: -The correct answer is B) Myelin sheaths allow for action potentials to be transmitted faster within the dendrites of neurons. Myelin sheath covers the axon of a neuron and is not present on the dendrites.
Detailed explanation-3: -Answer and Explanation: The following statement is true: c) It is necessary for saltatory conduction. Myelin wraps around the axon of a neuron.
Detailed explanation-4: -In the context of neurons, which of the following statements is true of the myelin sheath? It is a layer of fat cells that insulates axons and helps electrical signals travel faster down the axon.