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The Nervous and Endocrine System > 4. Anatomical Organization of the Nervous System > Flashcards

4. Anatomical Organization of the Nervous System Flashcards

1
Q

What is white matter?

A

myelinated axons in either the CNS or the PNS

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2
Q

What is gray matter?

A

unmyelinated neuronal cell bodies in either the CNS or PNS

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3
Q

What is tract?

A

white matter in the brain

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4
Q

What is tract/column?

A

white matter in the spinal cord

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5
Q

What is a nerve?

A

white matter in the PNS

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6
Q

What is nucleus?

A

gray matter deep in the brain

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7
Q

What is cortex?

A

gray matter on the surface of the brain

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8
Q

What is horn?

A

gray matter in the spinal cord

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9
Q

What is ganglion?

A

gray matter in the PNS

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10
Q

What are the two divisions of the CNS?

A

brain and spinal cord

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11
Q

What are the three main divisions of the brain?

A

hindbrain
midbrain
forebrain

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12
Q

What is the purpose of cerebrospinal fluid?

A

clear liquid that serves in shock absorption and exchange of nutrients and waste

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13
Q

Where is the main purpose of the spinal cord located?

A

pathway for information to and from the brain that relays sensory data and is a site for information integration and processing

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14
Q

What is the main responsibility of the spinal cord?

A

simple spinal reflexes and primitive processes such as walking, urination, and sex organ function

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15
Q

What are the three components of the hindbrain?

A

medulla
pons
cerebellum

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16
Q

What is the function of the medulla?

A

relaying information between areas of the brain
regulated vital autonomic functions
contains the respiratory rhythmicity center

17
Q

What is the function of the cerebellum?

A

integrating center where complex movements are coordinated

18
Q

What is the function of the midbrain?

A

relay for visual and auditory information
contains the reticular activating system

19
Q

What is the RAS?

A

reticular activating system = reponsible for arousal and wakefulness

20
Q

What are the two divisions of the forebrain?

A

diencephalon
telencephalon

The Nervous and Endocrine System (12 decks)

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