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Nerve Cell Structure and Function Quiz

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Questions and Answers

What is the primary function of the myelin sheath?

To protect the nerve cell from damage

To connect nerve cells to muscles

To aid in the growth of new nerve cells

To increase the speed of nerve impulses (correct)

Nerve cells are short and thick to ensure efficient transmission of messages.

False

What are the branches at the end of nerve cells called?

dendrites

The axon of a nerve cell is surrounded by a ______ that acts as insulation.

myelin sheath Signup and view all the answers

Match the parts of a nerve cell with their functions:

Axon = Transmits electrical impulses Myelin sheath = Insulates the axon Dendrites = Receives signals from other cells Electrical impulses = Transmit messages around the body Signup and view all the answers

What is the primary structure that surrounds the axon of a nerve cell?

Myelin sheath Signup and view all the answers

Nerve cells are short and thick to ensure efficient transmission of messages.

False Signup and view all the answers

What role do dendrites play in nerve cells?

They allow nerve cells to communicate with other nerve cells. Signup and view all the answers

The axon of a nerve cell is surrounded by a ______ that provides electrical insulation.

myelin sheath Signup and view all the answers

Match the following components of a nerve cell with their functions:

Myelin sheath = Electrical insulation for axon Axon = Transmits electrical impulses Dendrites = Receive signals from other cells Nerve impulse = Carries messages through the body Signup and view all the answers

Study Notes

Nerve Cell Structure and Function

The primary function of the myelin sheath is to insulate axons, thereby increasing the speed of nerve impulse transmission.
Nerve cells are not short and thick. They can be very long, with some extending from the brain to the toes. The diameter of an axon can also vary, with thicker axons generally conducting impulses faster.
The branches at the end of nerve cells are called axon terminals. These terminals release neurotransmitters into the synapse, allowing communication between neurons.
The axon of a nerve cell is surrounded by a myelin sheath that acts as insulation.
The myelin sheath is the primary structure that surrounds the axon of a nerve cell.
Dendrites are the branched extensions of a neuron that receive signals from other neurons.
Dendrites play a crucial role in receiving and integrating information from other neurons.
The axon of a nerve cell is surrounded by a myelin sheath that provides electrical insulation, ensuring efficient signal transmission.

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Description

Test your understanding of the structure and function of nerve cells in this engaging quiz. You'll explore important components such as the myelin sheath and axons, as well as the overall significance of each part. Perfect for students studying biology or neuroscience.