Multiple Choice
Which part of the neuron is primarily responsible for generating and conducting action potentials?
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4. Tissues & Histology
Nervous Tissue: The Neuron
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Which of the following is the most likely path of an electrical signal travelling through a neuron and arriving at a muscle?
A
Neuroglia → dendrites → a cell body → axon → muscle.
B
Dendrites → cell body → axon → muscle.
C
Dendrites → axon → cell body → muscle.
D
Axon → cell body → dendrites → muscle.
Verified step by step guidance1
Understand the structure of a neuron: Neurons have dendrites, a cell body (soma), and an axon. Dendrites receive signals, the cell body processes them, and the axon transmits them.
Identify the starting point of the signal: Electrical signals typically begin at the dendrites, which receive input from other neurons or sensory stimuli.
Trace the path through the neuron: After the dendrites, the signal moves to the cell body, where it is integrated and processed.
Follow the signal to the axon: The processed signal is then transmitted down the axon, which is responsible for carrying the signal away from the cell body.
Determine the endpoint: The axon ends at the synapse, where the signal is transferred to the muscle, causing contraction. Therefore, the correct path is dendrites → cell body → axon → muscle.
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