Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Anatomy > Unit 3: somatic > Flashcards

Unit 3: somatic Flashcards

1
Q

perception

A

interpretation of sensation into meaningful forms occurs in the cerebrum

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

how much sensory information is consciously perceived

A

very little, most is not processed at all

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

somatic sensation

A

sensory information from skin and musculoskeletal

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

information from skin examples

A

superficial: touch, pain, temperature, pressure and vibration; also deep cutateous

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

information from musculoskeletal

A

proprioception, tension on muscles, joints, position, deep vibration and pain

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

differences in system

A

unevenly distribution of receptors, responsiveness, different diameters of nerves

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

types of receptors

A

mechanoreceptors, chemoreceptors, thermoreceptors

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

mechanoreceptors

A

mechanical deformations touch, pressure, stretch, vibration

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

chemoreceptors

A

released by cells, injury or infection

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

thermoreceptors

A

hot, cold

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

parts of body loaded with receptors

A

hands and face

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

differences in architecture

A

encapsulated or uncapsulated

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

unencapsulated

A

free nerve endings, primarily sensitive to tissue damage: pain receptors, temperature fluxes

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

encapsulated sensory cells

A

touch, vibration

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

Differences in receptors

A

architecture, receptive fields, type of innervation, attenuation properties

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

pacinian corpuscles

A

deep vibration

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

ruffinis endings

A

deep, stretch, joint deformation, warmth, how much force is put on joint

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

meissners corpuscles

A

shallow, light touch vibration

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

Merkel’s disks

A

shallow, light touch

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

krause end bulbs

A

shallow, cold

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

nerve endings

A

temperature

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

Some nerve endings respond to

A

touch, tickle, or itch

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

What has small receptive fields

A

meissners and merkel

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

what has large receptive fields

A

pacinian and ruffini

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
test for receptive field
two point test, whether two points can be distinguished; high resolution vs low resolution
26
2 types of fine touch
superficial and subcutaneous
27
coarse touch
uses free nerve ending, pleasant touch tickle, itch
28
what uses meissners and merkles touch
superficial fine touch
29
types of innervation
Large myelinated, medium myelinated, small myelinated and small unmyelinated
30
4 types of axons
Aa, AB, Ad, C
31
what do C fibers do
mediate pain and temperature
32
what is largest fiber
Aa, tell your brain where your muscles are
33
Where are largest and fastest
in muscles not skin
34
Receptor attenuation refers to
Adaptation
35
pt suffers 3rd degree bone, not through hyperdermis what will they be able to detect
not touch or temperature, but deep vibration perhabs
36
tonic
slow to adapt, keep firing as long as stimulus is present provide long term feedback (carotid sinus*)
37
phasic
respond only when there is a change in the stimulus
38
3 parts of muscle spindles
Muscle fibers, sensory neurons, motor neurons
39
golgi tendon organs
determine how much tension a muscle is under, only sensitive to force, can send inhibitory signals to the muscle to relax if under too much force
40
joint receptors
Respond to movement of joint and ligaments: ruffini, paciniform, ligament receptors, free nerve ending; fastest
41
tonic
slow to adapt, keep firing as long as stimulus is present provide long term feedback (carotid sinus)
42
Type of proprioceptors
Muscle spindles, golgi tendon organ, joint receptors
43
there is redundency in?
proprioceptors so if you lose one you have more
44
golgi tendon organs
determine how much tension a muscle is under, only sensitive to force
45
dorsal columns carry
discriminate touch and proprioception
46
primary relay
carries from receptor to medulla
47
secondary relay carries
crosses over and ascends to ventral posteriolateral nucleus, medulla to thalamus
48
tertiary relay carries
conveys info from thalamus to the cerebral cortex
49
joint receptors nerves
ruffini, paciniform, ligament receptors, free nerve; fastest
50
primary sensory cortex discriminates among
size, texture, shape
51
somatosensory association areas
determines what thing is from sensory info
52
3 pathways that carry info to brain
conscious relay, divergent pathways, and unconscious relay
53
who do paths differ
in ability to locate stimulus, and awareness
54
stereognosis
ability to identify something by touch only
55
nerve bundlig
tend to stay together from same part of body, usually minimum of 3 neurons
56
conscious relay
high fidelity info, info is also discriminative, can make fine distinctions
57
2 pathways of conscious relay
dorsal columns and anteriolateral tracts
58
injure right side of cord at L1, where will pain be
won't feel it on the left side, won't feel proprioception on right side
59
will sensory be ipsilateral or contralateral of injury
if injury is distal end of cord it will be ipsilateral, if at brain stem it will be contralateral
60
primary sensory cortex
discriminates size, texture, shape
61
association
determines what thing is from sensory info
62
how do touch and proprioception rise?
ipsilaterally before crossing over to medulla
63
what happens if you lose peripheral afferent info
awareness of body can be lost
64
stereonosis
can identify by feeling
65
if have lesion loss will occur
below the lesion
66
course, pain and touch travel through
lateral tracts
67
spinothalamic path
temperature pathway, cross over is immediate
68
High fidelity
can feel precisely where stimulus is
69
What is a receptive field
how large an area of the skin that is served by a single receptor and neuron
70
What type of touch is Pacinian and ruffini's
subcutaneous fine touch
71
What primary afferent axon mediates touch sensation
AB
72
Tonic receptor example
Merkel's disk, Ruffini's ending
73
Phasic receptor example
Meissner's corpuscle, pacinian corpuscle
74
Muscle spindles are
the sensory organs embedded muscle that keep muscles from lengthening too much or too fast
75
Conscious relay is
awareness of stimuli and precise location
76
Divergent pathways are
awareness but cannot localize
77
Unconscious relays are
unaware
78
Anteriolateral tracts carry what kind of information
pain, temperature and coarse touch
79
Muscle spindle function
Keeps muscles from lengthening too much or too fast, informs CNS of joint angles
80
Anterolateral tract
pain, temperature, coarse touch

Anatomy (15 decks)

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