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Anatomy > Nervous System > Flashcards

Nervous System Flashcards

1
Q

What are the functions of the nervous system?

A

Sensory input/Detect
Integration/Analysis
Motor Output/Response

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2
Q

What are the two structures of the nervous system?

A

CNS- central nervous system
PNS- peripheral nervous system

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3
Q

What are the parts of the central nervous system?

A

Brain and spinal cord

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4
Q

What are meninges?

A

The 3 protective layers in the brain and spinal cord
Dura mater
Arachnoid mater
Pia mater

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5
Q

What is the dura mater?

A

Meninges
Outer layer, thick and tough
(Like bark on a tree)

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6
Q

What is the arachnoid mater?

A

Meninges
Middle layer, web like, allows for shock absorption
(Like aracnaphobia, spider-web like)

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7
Q

What is pia matter?

A

Meninges
Deep and vascular, soft for protection of brain matter

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8
Q

What is the function of the spinal cord?

A

Carries sensory information from the body to the brain

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9
Q

What is the function of the peripheral nervous system?

A

Connects the CNS to peripheral structures (glands, organs, muscles, etc)

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10
Q

What does afferent mean?

A

Information is sent towards the nervous system (sensory)
Think A- affect

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11
Q

What does efferent mean?

A

Information is sent from the nervous system to the organs of the body, which carry out the appropriate response (motor)
Think E- effect

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12
Q

What are the divisions of the peripheral nervous system?

A

Somatic and autonomic

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13
Q

What is the autonomic system?

A

Involuntary system that directs functions like heartbeat, breathing, digestion

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14
Q

What is the somatic system?

A

Voluntary system that directs skeletal muscle.

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15
Q

What are the parts of the autonomic system?

A

Sympathetic and parasympathetic

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16
Q

What is the sympathetic system?

A

Part of the autonomic system. Fight or flight response when under stress.

17
Q

What is the parasympathetic system?

A

Part of the autonomic system. Keeps heart rate, blood pressure and metabolism low when at rest.

18
Q

What are neurons?

A

Nerve cells that make up nerves

19
Q

What are the three kinds of neurons?

A

Sensory, motor, associative (relay- connect neurons together)

20
Q

What are glial cells?

A

The glue that holds neurons together and helps maintain homeostasis in the nervous system.

21
Q

What is a motor unit?

A

Single motor neuron as well as all the muscle fibers that neuron acts on.

22
Q

What is proprioception and what are the primary receptors?

A

The sense of the orientation of one’s limbs in space.
Primary receptors are golgi tendon organs (GTO) and muscle spindles

Anatomy (7 decks)

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