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Medical Science > Year 1 - Nervous System > Flashcards

Year 1 - Nervous System Flashcards

1
Q

What is the central nervous system made of?

A

Brain and spinal cord

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2
Q

What is the peripheral nervous system?

A

Connects the CNS to the rest of the body

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3
Q

What is a stimulus?

A

Change in the environment

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4
Q

What is a receptor?

A

Detects a stimulus

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5
Q

What is an effector?

A

Structure that brings about a response

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6
Q

What is an example of effectors?

A

Muscles or glands

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7
Q

What are the responses that are controlled by the nervous system like?

A

Rapid; short-lived;localised

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8
Q

What is the proper name for the messaged that travel along neurones?

A

Impulses

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9
Q

What is a nerve?

A

A bundle of neurones

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10
Q

What is the junction between two neurones?

A

Synapses

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11
Q

What is the cell body?

A

Part of neurone that contains nucleus

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12
Q

What are dendrites?

A

Carry impulses towards cell body

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13
Q

What is an axon?

A

Carries impulses away from the cell body

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14
Q

What is a synaptic end build/synaptic knob?

A

Secretes neurotransmiter at synapse

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15
Q

What is myelin?

A

Material that provides electrical insulation and protection to an axon

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16
Q

What is a Schwann cell?

A

Cell that wraps around axon many times to from the myelin sheath

17
Q

What is a Node of Ranvier?

A

Unmyelinated gap between Schwann cells

18
Q

What is a neurone?

A

A nerve cell

19
Q

What is a neurotransmitter?

A

Chemical released at a synapse to allow one neurone to communicate with another

20
Q

What is a sensory neurone?

A

Carries impulses from a receptor to the CNS

21
Q

What is a motor neurone?

A

Carries impulses from CNS to effector

22
Q

Examples of sense organs that contains receptors

A

Nose, eyes, ears, skin

23
Q

Each receptor is ______ to a stimulus (it can only detect one type of stimulus)

A

Specific

Medical Science (20 decks)

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