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ANS 206 > Nervous System > Flashcards

Nervous System Flashcards

1
Q

Functions of nervous system

A

Regulates movement, regulates secretion of glands, collects information from external and internal environments, maintains consciousness, stimulus behavior

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2
Q

Two divisions of the nervous system

A

Central and Peipheral

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3
Q

The central nervous system consists of what parts

A

Brain and spinal cord

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4
Q

The peripheral nervous system consists of what parts

A

Cranial and spinal nerves

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5
Q

Two cell types found in the nervous system

A

Neurons and neuroglia

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6
Q

Synapse definition

A

Junction between an axon of one neuron with another neuron

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7
Q

Ganglia definition

A

Group of nerve cells in PNS

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8
Q

Tracts definition

A

Bundles of nerve processes in the CNS

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9
Q

Nerves definition

A

Bundles of nerve processes in the PNS

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10
Q

Gray matter definition

A

Aggregates of neuronal cell bodies

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11
Q

White matter definition

A

Regions of tracts

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12
Q

The three main subdivisions of the brain

A

Cerebrum, Cerebellum, Brain stem

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13
Q

Convex ridges of the cerebrum

A

Gyri

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14
Q

Fissures of the cerebrum

A

Sulci

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15
Q

The prominent fissure on the median plane and separates the cerebrum into right and left hemispheres

A

Longitudinal fissure

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16
Q

Where is gray matter located in the cerebrum

A

Outside

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17
Q

Where is gray matter of the spine

A

Inside

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18
Q

What is the gray matter called in the cerebrum

A

Cerebral cortex

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19
Q

What is deep subcortical gray matter called

A

Basal nuclei

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20
Q

Function of basal nuclei

A

Initiation and maintenance of motor activity

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21
Q

What is the name of the medial ridge in the cerebellum

A

Vermis (worm)

22
Q

What is on the surface of the cerebellum

A

Folia

23
Q

In the cerebellum, where is white matter located

A

Inside

24
Q

In the cerebellum, where is gray matter located

A

Outside

25
Q

Function of cerebellum

A

Timing and execution of movements & smooth and coordinate muscle activity

26
Q

What does the diencephalon consist of

A

Thalamus, epithalamus, hypothalamus, third ventricle

27
Q

Thalamus function

A

Important relay information; connects cerebral hemispheres to brain stem & spinal cord

28
Q

Epithalamus function

A

Produces melatonin

29
Q

Hypothalamus function

A

Autonomic activities and behavior

30
Q

Where does the nervous system and the endocrine system communicate

A

Between the pituitary gland and the hypothalamus

31
Q

Which ventricle contains CSF

A

Third

32
Q

Where is the midbrain located

A

Between the diencephalon and pons

33
Q

What connects the spinal cord and brain stem

A

Cerebral peduncles

34
Q

On the midbrain, what are the small bumps called

A

Colliculi

35
Q

Rostral colliculi function

A

Coordinate visual reflexes

36
Q

Caudal colliculi function

A

Relay nuclei for audition

37
Q

Pons function

A

Connects both hemispheres of the cerebellum together

38
Q

What is the hole in the back/bottom of the skull called

A

Foramen magnum

39
Q

Medulla oblongata function

A

Contains autonomic centers & nuclei

40
Q

1st step of ventricles

A

Lateral ventricle to third ventricle through interventricular foramen

41
Q

2nd step of ventricles

A

Third ventricle to fourth ventricle through cerebral aqueduct

42
Q

Which cell is responsible for producing CSF

A

Ependymal cells

43
Q

What makes the butterfly shape of the spinal cord

A

White matter

44
Q

Tracts that carry sensory information

A

Carry sensory information to the brain (ascending)

45
Q

Tracts that carry motor information

A

Carry information away from the brain, towards the limbs (descending)

46
Q

Three layers of the meninges

A

Pia mater, arachnoid, duramater

47
Q

What is the space between the pia mater and arachnoid

A

Subarachnoid space

48
Q

Which space is important for spinal tap

A

Subarachnoid space

49
Q

What is the fat-filled space called that separates the dura mater

A

Epidural space

50
Q

Epidural space function

A

Anesthetics

ANS 206 (11 decks)

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