Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Anatomy > The Nervous System Overview > Flashcards

The Nervous System Overview Flashcards

1
Q

What are the 3 functions of the nervous system?

A

detect changes in internal & external environment, evaluate info, communicate to make changes in muscles or glands

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the 3 ways to organize the nervous system?

A

by structure, by direction, by type of tissue they have effect upon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the 2 structures of the nervous system?

A

CNS and PNS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the two directions of the nervous system?

A

Afferent Division and Efferent Division

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the two types of tissues they have effect upon?

A

somatic nervous system and autonomic nervous system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the 2 structures of the CNS?

A

brain and spinal cord

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the function of the CNS? (3)

A

integrates information, evaluates incoming information, initiates response

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the function of the PNS?

A

bring info to and from the CNS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What does the PNS consist of? (2)

A

cranial nerves and spinal nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the afferent division?

A

incoming, travels toward the brain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What does the afferent division carry?

A

sensory information

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the afferent division called?

A

sensory pathways

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the efferent division?

A

outgoing, travels away from the brain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What does the efferent division carry?

A

response information to organs and muscles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What does the somatic system do?

A

carries info from CNS to skeletal muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What else does the somatic system carry?

A

sensory feedback

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What does the autonomic system do?

A

carries info from CNS to organs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are the 2 divisions of the autonomic system?

A

Sympathetic and parasympathetic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Sympathetic

A

fight/flight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Parasympathetic

A

rest/repair

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What are the two types of nervous system cells?

A

neurons and glia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What do neurons do? (2)

A

excitable and carry impulses that execute functions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

T/F

Neurons only exist in the CNS.

A

flase

24
Q

What are the two types of glia cells?

A

neuroglia and glial cells

25
Q

What do the glia cells do?

A

support functions of neurons

26
Q

What are the 4 supporting functions of neurons from glia cells?

A

nutrition, form the blood brain barrier, perform phagocytosis, provide physical support to neurons

27
Q

Glia cells exist mainly in what nervous system?

A

CNS and PNS

28
Q

What are the 5 functions of Neuroglia cells?

A

astrocytes, microglia, ependymal, oligodendrocytes, schwann

29
Q

Where are astrocytes found?

A

CNS only

30
Q

What are the 3 functions of astrocyte cells?

A

help early development, recycle neurotransmitters, form the blood brain barrier

31
Q

Where is the microglia cell found?

A

CNS only

32
Q

What does the microglia cell do? (2)

A

serve phagocytic function. prune unneeded neuron processes to increase effeciency

33
Q

Where is the ependymal cell found?

A

CNS only, lines cavities in brain and spinal cord

34
Q

What does the ependymal cell produce?

A

Cerebrospinal fluid (CSF)

35
Q

What circulates the CSF?

A

cilia

36
Q

Where are oligodendrocytes found?

A

CNS only

37
Q

What is the function of the oligodendrocytes cells? (2)

A

provide physical support, produce myelin in the CNS

38
Q

Where is the schwann cells located?

A

PNS only

39
Q

What is the function of schwann cells? (2)

A

provide physical support, produce myelin in PNS

40
Q

What is myelin?

A

fatty substance surrounding axon of neuron

41
Q

What does myelin facilitate?

A

neural impulse transmission

42
Q

What is destruction?

A

interruption in transmission

43
Q

What are the 3 structural classifications of neurons?

A

multipolar, bipolar, unipolar

44
Q

Where are multipolar neurons most common? (2)

A

brain and spinal cord

45
Q

Where are bipolar neurons found in?

A

sensory systems

46
Q

What are unipolar neurons?

A

sensory neurons

47
Q

What are nerve impulses?

A

electrical fluctuations that moves along the axon

48
Q

What are the 2 characteristics of neurons?

A

excitability and conductivity

49
Q

What are membrane potentials?

A

all cells have a difference in concentration of ions across their membranes

50
Q

Outside of neuron should have a _____ charge?

A

positive

51
Q

Inside of neuron should have a ______charge?

A

negative

52
Q

What is the difference in charges of neurons?

A

membrane potential

53
Q

Membrane potentials are also called?

A

resting membrane potential (RMP)

54
Q

How is RMP maintained?

A

moving positive sodium and potassium ions across the membrane

55
Q

What is action potential?

A

an electrical impulse that travels along the surface cell membrane

56
Q

What else is the action potential called?

A

nerve impule

57
Q

When does action potential occur?

A

when threshold potential is reached and gated channels open

Anatomy (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions