Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Anatomy Lecture Exam #3 > Nervous Tissue > Flashcards

Nervous Tissue Flashcards

1
Q

What is the nervous system?

A

The body’s primary communication and control system

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

What two types of nervous tissue is the nervous system composed of?

A

Neurons and Glial cells

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

What are the two names of the structural division 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 two structures does the CNS include?

A

brain and spinal cord

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

What three structures does the PNS include?

A

cranial nerves, spinal nerves and ganglia

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

What is a bunch of soma in the CNS called?

A

Nucleus

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

What is a bunch of axons in the CNS called?

A

Tract

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

What is a bunch of soma in the PNS called?

A

Ganglia

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

What are a bunch of axons in the PNS called?

A

Nerves

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

What are the two ways to classify the nervous system functionally?

A

Sensory nervous system and motor nervous system

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

The sensory nervous system is ____ information.

A

input

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

Which way does information flow in the sensory nervous system?

A

PNS —–> CNS

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

What are the two subcategories of the sensory nervous system?

A

Visceral sensory and somatic sensory

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

Is somatic sensory conscious or unconscious stimuli?

A

Conscious

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

What are six examples of somatic sensory?

A

touch, pain, pressure, smell, sight, and sound

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

Is visceral sensory information unconscious or conscious?

A

unconscious

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

What is an example of visceral sensory information?

A

information from organs (blood vessel stretch)

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

The motor nervous system is _____ information.

A

output

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

Which way does information flow in the motor nervous system?

A

CNS —-> PNS

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

Which two subcategories are under the motor nervous system?

A

Autonomic motor and somatic motor

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

Is somatic motor voluntary or involuntary?

A

voluntary

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

What does the somatic motor system innervate?

A

Skeletal muscle

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

Is the autonomic motor system voluntary or involuntary?

A

involuntary

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

What does the autonomic motor system innervate?

A

smooth and cardiac muscles, glands

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
What two subcategories are under the autonomic motor system?
Sympathetic and parasympathetic
26
What is the catch phrase for the sympathetic nervous system?
Fight or flight
27
What does the sympathetic nervous system prepare the body for?
energy consuming activities
28
What is the catch phrase for the parasympathetic nervous system?
rest and digest
29
What does the parasympathetic nervous system prepare the body for?
gaining and conserving energy
30
What is the description for a neuron?
electrically excitable and conductive
31
What are the three characteristics of neurons?
high metabolic rate, extreme longevity and non-mitotic
32
What three structures are part of a neuron?
soma, dendrites, axons
33
What does the soma do?
receive, integrate and send information
34
What three organelles are found in the soma?
mitochondria, RER and ribosomes
35
What are many RER and ribosomes in one area called?
Nissl Bodies
36
What color are Nissl Bodies?
Gray
37
What do dendrites do?
Receive information and send it to the soma
38
What do axons do?
Sends information to effector
39
What is the axon hillock?
site of axon connection to soma
40
What are axon collaterals?
side branches
41
What is telodendria?
Fine terminal extensions
42
What are synaptic knobs?
expanded tips of telodendria
43
How are neurons classified structurally?
it is based on the number of processes from the soma
44
What does a unipolar neuron look like?
single short process that branches like a T
45
What does a bipolar neuron look like?
2 processes, one for dendrites, other for axon
46
What does a multipolar neuron look like?
many dendrites and a single axon
47
Of the three neurons, which is the most common?
mulitpolar
48
How are neurons classified functionally?
it is based on the direction of the impulse
49
What is another name for sensory neurons?
Afferent
50
What is another name for motor neurons?
Efferent
51
Which direction do sensory neuron impulses go?
From sensory receptors to CNS
52
Structurally, which type of neuron are sensory neurons? of the two, which one is it mostly.
unipolar and bipolar. mostly unipolar
53
Where are the cell bodies found for sensory neurons?
outside of the CNS
54
Which direction to motor neuron impulses go?
from the CNS to muscles or glands
55
Structurally, what type of neuron is a motor neuron? Where is the soma located?
multipolar and inside CNS
56
What do interneurons transmit?
impulses between sensory and motor neurons
57
About what percentage of neurons is made up by interneurons?
99%
58
Structurally what kind of neuron is an interneuron and where is the cell body located?
multipolar and inside the CNS
59
What is the function of glial cells?
protect and nourish neurons
60
What are the four characteristics of glial cells?
Not excitable, mitotic, smaller and more abundant
61
What do astrocytes look like? Are there a lot of them?
star shaped; they are most abundant
62
What are the four functions of astrocytes?
forms blood brain barrier, forms structural framework, replaces damaged neurons, and assisting neuronal development
63
What are ependymal cells?
ciliated cuboidal cells lining ventricles ad central canal of spinal cord
64
What do ependymal cells form?
choroid plexus
65
What is the function of ependymal cells?
produce and circulate CSF
66
What does CSF do?
nourish nervous tissue
67
What are the three characteristics of microglial cells?
smallest cells, least abundant and phagocytic
68
What is the function of microglial cells?
respond to infections, remove waste and debris
69
Are oligodendrocytes large or small?
large
70
What is the function of oligodendrocytes?
myelinated multiple axons in the CNS
71
What is myelin?
Electrical insulation
72
What color is myelin? Why is it that color?
White because it is lipid filled.
73
What are satellite cells?
flattened cells surrounding soma in ganglia
74
What is the function of satellite cells?
keeps soma separate and regulates nutrients
75
What are neurolemmocytes?
Schwann cells
76
What is the function of neurolemmocytes?
myelinated single axon in PNS
77
What are nerves?
Bundle of parallel axons in PNS
78
What kind of connective tissue surround the endometrium?
Aereolar CT
79
What does the endometrium surround?
Schwann cells and axon
80
What kind of CT surrounds the perineum?
Dense irregular CT
81
What does the perineum surround?
Fascicles (group of axons)
82
What kind of CT surrounds the epinerium?
Dense irregular CT
83
What does the epinerium surround?
A nerve (bundle of fascicles)
84
What are synapses?
communication junction between axons and another neuron, muscle or gland

Anatomy Lecture Exam #3 (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions