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Progress Test 4 > Nervous System > Flashcards

Nervous System Flashcards

1
Q

What two parts make up the nervous system?

A

The central nervous system (CNS) and the Peripheral Nervous system (PNS)

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2
Q

What is the central nervous system?

A

Consists of the brain and spinal cord that contain all internuerons and glial cells ( oligodendrocytes)

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3
Q

What is the peripheral nervous system (PNS)

A

Consists of 31 pairs of spinal nerves that carry signals to and from the spinal cord and 2 cranial nerves that carry signals to and from the brain.

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4
Q

What subdivisions does the (PNS) contain?

A

The somatic and autonomic subdivisions.

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5
Q

What are afferent nerves?

A

Nerves that carry sensory information to the CNS

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6
Q

What are efferent nerves?

A

Nerves that carry motor messages away from the CNS to muscles and glands.

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7
Q

What are the somatic nerves?

A

Nerves that carry signals related to head, trunk and limbs.

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8
Q

What are autonomic nerves?

A

Nerves that carry signals between internal organs

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9
Q

What is the autonomic system divided into?

A

The sympathetic and parasympathetic.

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10
Q

What are parasympathetic nerves?

A

Are nerves that slow down the body when it is in a state of calm and relaxation

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11
Q

What are sympathetic nerves

A

Nerves that work best during a state of high teens awareness, stress or danger. ( fight or flight ) response

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12
Q

What is the brain divided into?

A

The hind brain, the midbrain and the forebrain.

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13
Q

What is the hind brain?

A

Contains the medulla oblongata( vital take such as breathing)
Cerebellum ( coordinates voluntary movement)
Pons (directs signals between cerebellum and forebrain)

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14
Q

What is the midbrain?

A

Coordinates reflex response to sight and sound

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15
Q

What is the forebrain?

A 
The most developed region that contains the 
Cerebrum(info processing)
Olfactory bulb (smell)
Thalamus ( sensory relay) 
Hypothalamus
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16
Q

What is the cerebral cortex?

A

It has two cerebral hemispheres that is divided into four lobes

17
Q

What are the four lobes of the cerebral cortex.

A

Frontal, occipital, temporal and parietal.

Progress Test 4 (4 decks)

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