Questions: The cluster of fibers at one end of a neuron that receives messages from other neurons are called (A) axons. (B) terminal buttons. (C) glial fibers. (D) dendrites.

The cluster of fibers at one end of a neuron that receives messages from other neurons are called (A) axons. (B) terminal buttons. (C) glial fibers. (D) dendrites.
Transcript text: The cluster of fibers at one end of a neuron that receives messages from other neurons are called (A) axons. (B) terminal buttons. (C) glial fibers. (D) dendrites.
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Solution

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The answer is (D): dendrites.

Explanation for each option:

  • (A) Axons: Axons are long, slender projections of a neuron that typically conduct electrical impulses away from the neuron's cell body. They are responsible for transmitting messages to other neurons, muscles, or glands, not for receiving them.
  • (B) Terminal buttons: Terminal buttons, also known as synaptic terminals or axon terminals, are located at the end of an axon. They are involved in releasing neurotransmitters to send messages to other neurons, not in receiving messages.
  • (C) Glial fibers: Glial fibers are part of glial cells, which provide support and protection for neurons in the central and peripheral nervous systems. They do not directly receive messages from other neurons.
  • (D) Dendrites: Dendrites are branched extensions of a neuron that receive electrical signals from the synapses of other neurons. They are the primary structures for receiving messages from other neurons.

Summary: The cluster of fibers at one end of a neuron that receives messages from other neurons are called dendrites.

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