Neuron Flashcards

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1
Q

What’s a nurse cell?

A

A support cell

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2
Q

How many nervous system cells are nurse cells?

A

~95%

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3
Q

What’s another name for a nurse cell?

A

Neuroglial cell

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4
Q

Name the parts of the neuron

A

Soma
Dendrites
Axon
Schwann cells

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5
Q

What is the soma?

A

The body of the cell

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6
Q

What are dendrites?

A

Extensions that receive signals and carries them into the soma

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7
Q

What is the axon?

A

An extension that carries signals away from the soma

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8
Q

What are Schwann cells?

A

Insulator for cells that carry signals for long distances (carries signals faster)

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9
Q

Does every axon have Schwann cells?

A

Nope

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10
Q

What are other forms neurons?

A

Unipolar
Bipolar
Multipolar

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11
Q

What is a neuron?

A

A nervous system cell that is capable of creating and transmitting an electro-chemical signal

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12
Q

What is a myelin sheath?

A

A collection of Schwann cells

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13
Q

What does a myelin sheath do to signals

A

Signals are able to travel 50x faster

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14
Q

What is anything myelinated called?

A

White matter

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15
Q

What is anything not myelinated called?

A

Grey matter

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16
Q

What is a nerve

A

A bundle of axons leading to or away from your central nervous system