Brainscape's Knowledge GenomeTM

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


See full index

QUIZ 6 > Overview of Nervous System > Flashcards

Overview of Nervous System Flashcards

1
Q

neuron structure

A

cell body (soma) + dendrites + axon

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

dendrites

A

neurons can have one, none, or many; brings information to the cell body

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

axon

A

neuron can have only one; transmits information to other neurons and muscles

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

multipolar neuron

A

multiple dendrites extending from the cell body

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

unipolar neurons

A

no dendrites, just a single axon; have sensory receptors for receiving information from CNS

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

bipolar neurons

A

have one dendrite and one axon

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

CNS is composed of _

A

brain and spinal cord

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

PNS is composed of _

A

peripheral nerves and ganglia

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

meninges

A

3 layers of CT that protect brain and spinal cord

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

3 layers of meninges

A

dura mater, arachnoid mater, and pia mater

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

subarachnoid space

A

between the arachnoid and pia mater; filled with CSF

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

spinal cord ends at _

A

L1/L2

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

dura sheath extends to _

A

S2

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

_ cervical segments

A

8

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

_ thoracic segments

A

12

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

_ lumbar segments

A

5

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

_ sacral segments

A

5

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

_ coccygeal segments

A

1

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

conus medullaris

A

end of spinal cord

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

cauda equina

A

collection of nerve roots (L2 and below)

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

filum terminale

A

strand of fibrous tissue that extends from the end of conus medullaris to attach to the coccyx; contains pia mater

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

Where is CSF withdrawn in adults?

A

between L3 and L4

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

Where is CSF withdrawn in children?

A

between L4 and L5

24
Q

endoneurium

A

surrounds individual axons

25
Q

perineurium

A

surrounds bundle of axons (nerve fibers)

26
Q

myelin surrounds each _

A

axon

27
Q

afferent pathway

A

PNS to CNS (sensory)

28
Q

efferent pathway

A

CNS to PNS (motor)

29
Q

peripheral nervous system is made up of the _

A

somatic and autonomic nervous systems

30
Q

autonomic nervous system is made up of the _

A

parasympathetic and sympathetic systems; general visceral efferent

31
Q

somatic nervous system innervates _

A

body wall and limbs, skin, skeletal muscle, joints

32
Q

visceral system innervates _

A

smooth muscle, cardiac muscle, and glands

33
Q

dorsal ramus

A

brings sensory info from posterior

34
Q

ventral ramus

A

brings sensory info from lateral and anterior

35
Q

general somatic afferent route (from posterior stimulation)

A

sensory receptors –> dorsal primary ramus –> spinal nerve –> dorsal root –> spinal cord

36
Q

somatic afferent fibers are _

A

unipolar

37
Q

cell bodies for somatic afferent fibers reside in the _

A

dorsal root ganglion

38
Q

somatic afferent route (from anterior stimulation)

A

sensory receptors –> ventral primary ramus –> spinal nerve –> dorsal root –> spinal cord

39
Q

dermatome

A

cutaneous area supplied mainly by a single spinal nerve or segment (no C1 dermatome)

40
Q

general somatic efferent fibers are _

A

multipolar neurons

41
Q

cell bodies of somatic efferent fibers reside in _

A

ventral horn (where motor fibers reside)

42
Q

somatic efferent route (posterior stimulation)

A

ventral root –> spinal nerve –> dorsal primary ramus

43
Q

somatic efferent route (anterior stimulation)

A

ventral horn –> spinal nerve –> ventral primary ramus

44
Q

visceral efferent fibers contain _

A

a two neuron connection (synapse)

45
Q

parasympathetic nerves

A

cranial III, VII, IX, X; S2-S4

46
Q

sympathetic nerves

A

T1-L2

47
Q

both sympathetic and parasympathetic stimulate _

A

internal visceral organs

48
Q

only sympathetic innervates _

A

peripheral viscera (blood flow & temp)

49
Q

visceral efferent fibers are _

A

multipolar

50
Q

cell bodies of the visceral efferent fibers (preganglionic neurons) reside in _

A

lateral horn

51
Q

cell bodies of visceral efferent fibers (postganglionic neurons) reside in _

A

paravertebral ganglia

52
Q

visceral efferent pathway (to peripheral viscera)

A

ventral root (T1-L2) –> spinal nerve –> white ramus –> paravertebral ganglion –> gray ramus –> spinal nerve –> dorsal/ventral primary ramus

53
Q

How can the sympathetic nervous system innervate the entire body if they only have preganglionic neurons in T1-L2?

A

paravertebral ganglia

54
Q

white rami are present in _

A

T1-L2; preganglionic

55
Q

gray rami are located _

A

at all levels; post-ganglionic

56
Q

visceral efferent route to internal visceral organs

A

does not use the gray ramus

57
Q

visceral afferent route (from pain)

A

sensory receptors –> white ramus –> spinal nerve –> dorsal root –> spinal cord (no synapse)

QUIZ 6 (11 decks)

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