Neuron Structure Quiz

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Questions and Answers

What is the cell body?

Large area which contains cell nucleus or power plant.

What are dendrites?

Receives information and transmits impulses toward the cell body.

What is the function of the nucleous?

Command center of neuron.

What do axons do?

<p>Transmits impulses away from cell body toward axon terminals.</p> Signup and view all the answers

What is the myelin sheath?

<p>Insulation coat which covers the axon. This helps messages relay faster.</p> Signup and view all the answers

What are axon terminals?

<p>Branched structures at the end of neurons.</p> Signup and view all the answers

Flashcards

What is the function of the nucleus?

The brain of the neuron! Controls its activity and functions.

What is the cell body?

The large central part of a neuron, containing the nucleus and other organelles.

What are dendrites?

Tiny branches that receive signals from other neurons and transmit them towards the cell body.

What is the function of the axon?

A long, slender fiber that transmits nerve impulses away from the cell body to other neurons, muscles, or glands.

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What is the myelin sheath?

A fatty covering that surrounds the axon, improving the speed of nerve impulse transmission.

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What are axon terminals?

The branching ends of the axon, where nerve impulses are released to communicate with other neurons.

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Study Notes

Neuron Structure and Function

  • Cell Body: Central part of the neuron that houses the nucleus; crucial for maintaining the cell's health and function, often referred to as the "power plant."

  • Dendrites: Extensions from the cell body that receive signals from other neurons and transmit these impulses toward the cell body, playing a key role in communication between neurons.

  • Nucleous: The command center of the neuron, responsible for controlling cellular activities and the synthesis of proteins necessary for neuron function.

  • Axons: Long projections that carry impulses away from the cell body toward the axon terminals; vital for sending signals to other neurons or muscles.

  • Myelin Sheath: Protective layer of insulation surrounding the axon; facilitates faster transmission of electrical impulses along the axon, enhancing communication speed in the nervous system.

  • Axon Terminals: The branching end points of axons where neurotransmitters are released to transmit signals to adjacent neurons or muscle cells, completing the communication process.

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