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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In nervous tissue, which part of a neuron primarily receives incoming messages (synaptic input) from other cells?
A
Myelin sheath
B
Axon terminals
C
Dendrites
D
Nodes of Ranvier
Verified step by step guidance1
Understand the structure of a neuron, which typically includes dendrites, a cell body (soma), an axon, myelin sheath, nodes of Ranvier, and axon terminals.
Recall the function of dendrites: they are branched extensions of the neuron that primarily receive incoming signals or synaptic inputs from other neurons.
Recognize that the myelin sheath is a fatty layer that insulates the axon to speed up electrical signal transmission, but it does not receive messages.
Know that axon terminals are the endings of the axon where the neuron sends signals to other cells, not where it receives them.
Identify that nodes of Ranvier are gaps in the myelin sheath that facilitate rapid signal conduction along the axon, but they are not involved in receiving synaptic input.
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