Brainscape's Knowledge GenomeTM

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


See full index

Anatomy > nervous system > Flashcards

nervous system Flashcards

1
Q

what are the 3 functions of the nervous system

A
  1. respond to internal and external environment
  2. decide on what action to take
  3. do the action
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

how does the nervous system respond to internal or external stimuli

A

sensory receptors

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

how does the nervous system decide on what action to take

A

integration center (brain)

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

how does mssage travel from sensory receptors to the integration center

A

afferent arm

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

how does the nervous system carry out an action

A

effectors

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

usually, what are effectors

A

muscles or glands

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

how do messages get from the integration center to the effectors

A

the efferent arm

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

what are the 2 signals cells communicate with

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

what is an example of an electrical signal

A

action potential

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

what is an example of a chmical signal

A

neurotransmitter

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

what is the difference between the nervous and endocrine system

A

the nervous system works faster than the endocrine system

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

how does a person have a reflex so fast

A

the sensory receptor does not have to go to the brain before the body reacts

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

what are the 2 sections of the nervous system

A
  1. central nervous system (CNS)
  2. peripheral nervous system (PNS)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what body parts are located in the central nerous system

A

the brain and spinal cord

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

what happens in the central nervous system

A

when the body decides on what action to take

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

what body parts are found in the peripheral nervous system

A

nerves

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

what takes place in the peripheral nervous system

A

a) the body responds to a stimli
b) the body carries out an action

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

what are the 2 kinds of nerves used in the peripheral nervous system

A
  1. spinal nerves
  2. cranial nerves
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

what takes place in the peripheral nervous system through spinal nerves

A

messages go to and from the spinal cord

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

what takes place in the peripheral nervous system through cranial nerves

A

messages go to and from the brain

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

at what point does the spinal cord end

A

L1-L2

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

what are the 2 divisions of the periphral nervous system

A
  1. sensory (afferent) division
  2. motor (efferent) division
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

where is the sensory (afferent) division of the peripheral nervous system directed

A

to the brain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

where is the motor (efferent) division of the peripheral nervous system directed

A

to the organs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

what are the 2 divisions of the motor division of the peripheral nervous system

A
  1. somatic nervous system
  2. autonomic nrvous system
26
Q

where do impulses of the somatic nervou system of the motor division of the peripheral nervous system go.

A

from the CNS to the skeletal muscle

27
Q

is the action of the somatic nervous system of the motor division of the peripheral nervous system voluntary or involuntary

A

voluntary

28
Q

what kind of muscles are used in the somatic nervous system of the motor division of the peripheral nervous system

A

skeletal muscles

29
Q

what kind of nerve fibers are used in the autonomic nervous system of the motor division of the peripheral nervous system

A

visceral motor nerve fibers

30
Q

what kind of muscles are used in the autonomic nervous system of the motor division of the peripheral nervous system

A

a) smooth muscles
b) cardiac muscle
c) clands

31
Q

is the action of the autonomic nervous system of the motor division of the peripheral nervous system voluntary or involuntary

A

involuntary

32
Q

what are the 2 subdivisions of the autonmic nervous system of the motor division of the peripheral nervous system

A
  1. synapathetic
  2. parasympathetic
33
Q

what is the synapathetic subdivisions of the autonmic nervous system of the motor division of the peripheral nervous system

A

fight or flight

34
Q

what is the parasympathetic subdivisions of the autonmic nervous system of the motor division of the peripheral nervous system

A

rest or digest

35
Q

what are glial cells

A

small cells surrounding neurons

36
Q

what are neurons

A

the main cell resposible for transmitting electrical signals

37
Q

what 4 glial cells can be found in the central nervous system

A
  1. astrocytes
  2. microglial cells
  3. ependymal cells
  4. oligodendrocytes
38
Q

what is the function of astrocytes

A

position the neurons in place and nourinsh the cell

39
Q

what is the function of microglial cells

A

phagocytosis- cleans sells by eating away at debris

40
Q

what is the function of ependymal cells

A

line the ventricles (cavities of brain and spinal cord) and regulate flow and production of cerebrospinal fluid (CSF)

41
Q

what is the function of oligodendrocytes

A

form the myelin sheath

42
Q

what are the 2 kinds of glial cellsfound in th peripheral nervous system

A
  1. satellite cells
  2. schwaann cells
43
Q

what is the function of satellite cells

A

position neurons in place and nourish the cells

44
Q

what is the function of schwann cells

A

form the myelin sheath

45
Q

what is the function of neurons

A

to conduct impulses

46
Q

wht is unique about neurons

A

they are amitotic- their cells do not divide

47
Q

what is a ganglion

A

a cluster of neuron cells in the peripheral nervous system

48
Q

what is a nerve

A

a cluster of nerve fibers in the central nervous system

49
Q

what is a nucleus

A

a cluster ofneurons within the central nervous system

50
Q

what is a tract

A

a group of nerve fibers in the central nervous system

51
Q

what is the function of a dendrite

A

convey incoming messages toward cell body as graded potentials

52
Q

what is the function of the axon

A

generate nerve impulses and transmite them to the axon terminal

53
Q

in what direction is anterograde movement

A

soma -> axon terminals

54
Q

what moves with anterograde movement

A

mitochondria, sytoskeletal elements, membrane components, enzymes

55
Q

in what direction is retrograde movements

A

axon terminal -> soma

56
Q

what moves with retrograde movement

A

organelles to be degraded, signal moleculs, virusis, bacterial toxind

57
Q

what is the importance of the myelin sheath

A

it allows impulses to occure quicker

58
Q

the white matter in the bain and spinal cord is due to what

A

myelinated nerve fibers

59
Q

the grey matter in the brain and spinal cord is due to what

A

nerve cell bodies, dendrites, neuroglia, and unmyelinated axons

60
Q

what do sensory neurons do

A

transmit impulses from sensory receptors toward the central nerous system

61
Q

what do motor neurons do

A

carry impulses from the central neurons to the effectors

62
Q

what do interneurons do

A

the lie between motor neurons and sensory neurons

Anatomy (13 decks)

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