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Multiple Choice
Which of the following is not a part of a neuron?
A
Myelin sheath
B
Axon
C
Sarcomere
D
Dendrite
Verified step by step guidance
1
Understand the structure of a neuron: Neurons are the basic building blocks of the nervous system and consist of three main parts: the cell body (soma), dendrites, and axon.
Identify the function of each part: Dendrites receive signals from other neurons, the axon transmits signals away from the cell body, and the myelin sheath is a protective covering that insulates the axon to increase the speed of signal transmission.
Recognize that the myelin sheath, axon, and dendrite are all integral parts of a neuron, each playing a specific role in the transmission of nerve impulses.
Understand the term 'sarcomere': A sarcomere is the basic unit of striated muscle tissue, not a component of a neuron. It is involved in muscle contraction and is part of the muscular system, not the nervous system.
Conclude that the sarcomere is not a part of a neuron, as it is related to muscle structure and function, distinguishing it from the components of a neuron.