15.1 - Neurones Flashcards by Sam McGee

Q

What is the function of neurones?

A

Transmit electrical impulses

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Q

What are the key structural components of neurones?

A

Cell body

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Q

What is the function of the cell body?

A

Contains nucleus and organelles

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Q

What is the function of dendrons?

A

Receive impulses and transmit to cell body

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Q

What is the function of the axon?

A

Carries impulses away from cell body

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Q

What are Schwann cells?

A

Cells surrounding some neurones

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Q

What is the function of Schwann cells?

A

Form myelin sheath

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Q

What is the function of the myelin sheath?

A

Insulates axon

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Q

What is saltatory conduction?

A

Impulse jumps between nodes of Ranvier

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Q

What are the types of neurones?

A

Sensory

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Q

What is the function of sensory neurones?

A

Carry impulses from receptors to CNS

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Q

What is the function of relay neurones?

A

Carry impulses within CNS

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Q

What is the function of motor neurones?

A

Carry impulses from CNS to effectors

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Q

What is the typical impulse pathway?

A

Receptor

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