anatomy neuron diagram

anatomy neuron diagram

Assessment

Flashcard

Science

9th - 12th Grade

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the function of a Schwann cell in a neuron?

Back

Schwann cells are responsible for the formation of the myelin sheath around peripheral nerves, which insulates the axon and increases the speed of nerve impulse transmission.

2.

FLASHCARD QUESTION

Front

What is the myelin sheath and its role in neuronal function?

Back

The myelin sheath is a fatty layer that surrounds the axon of some neurons, facilitating faster transmission of electrical signals along the axon.

3.

FLASHCARD QUESTION

Front

What is a node of Ranvier and its significance?

Back

A node of Ranvier is a gap in the myelin sheath where the axon is exposed, allowing for the rapid conduction of nerve impulses through saltatory conduction.

4.

FLASHCARD QUESTION

Front

What is the axon terminal and its function?

Back

The axon terminal is the endpoint of a neuron where neurotransmitters are released to communicate with other neurons or target cells.

5.

FLASHCARD QUESTION

Front

Which neuron is typically responsible for receiving signals from neurotransmitters?

Back

The postsynaptic neuron, often referred to as neuron 'W' in diagrams, receives signals from the presynaptic neuron through neurotransmitter binding.

6.

FLASHCARD QUESTION

Front

What are neurotransmitters and their role in neuronal communication?

Back

Neurotransmitters are chemical messengers released from the axon terminal that transmit signals across the synapse to the next neuron.

7.

FLASHCARD QUESTION

Front

Describe the structure of a typical neuron. What are its main parts?

Back

A typical neuron consists of a cell body (soma), dendrites, an axon, axon terminals, and may be covered by a myelin sheath.

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