Brainscape's Knowledge GenomeTM

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


See full index

Histo & Neuro Part 2 > Somatosensory Receptors > Flashcards

Somatosensory Receptors Flashcards

1
Q

Skin receptors - stimuli outside the body

A

Exteroreceptors

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

Muscle, tendon, joint receptors - awareness of body position and movements

A

Proprioceptors

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

Viscera receptors - monitor events within the body

A

Enteroreceptors

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

Receptors that detect chemicals

A

Chemoreceptors

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

A specialized neuron able to detect and react to light during vision

A

Photoreceptors

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

Detect mechanical forces

A

Mechanoreceptors

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

Detect changes in temperature

A

Thermoreceptors

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

Detect pain

A

Nociceptors

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

Slowly adapting - continous

A

Tonic

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

Rapidly adapting - onset and cessation of stimuli

A

Phasic

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

Ability to recognize objects by touch alone

A

Stereogenesis

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

Ability to recognize numbers or letters drawn on the skin, it requires memory

A

Graphesthesia

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

▫ Requires intact pathway from deep structures
▫ Low frequency 128 vibrations/second are associated with the light touch pathways

A

Vibration sense

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

The minimum distance needed between two stimuli to perceive them as two units.

A

Two-point dsicrimination

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

Which receptor has two-point discrimination?

A

Merkel’s receptors

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

The space or region over which a stimulus alters neuronal activity

A

Receptive Field (rf)

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

Sensory receptors convert a stimulus into a neural activity

A

Stimulus transduction

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

How does a sensory receptor convert a stimulus into a transduction?

A

Mechanoreceptors open ion channels -> receptor potential (rapid or slow) -> stimulus transduction

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

Type of Receptors that release neurotransmitters onto sensory neurons, initiating AP

A

Special sense receptors
ex: hair cells

20
Q

Type of Receptors that have nerve endings in CT capsules

A

Complex neural receptors

21
Q

Type of receptors that are neurons with free nerve endings - no capsule - unmyelinated

A

Simple receptors - slower conduction

22
Q

Primary Sensory Neuron

A

First order neuron - DRG

23
Q

Dermis is composed of what kind of receptors?

A

Mechanoreceptors - pressure stretch, vibration

24
Q

Encapsulated Receptors:

A

Meissner’s
Pacinian’s
Ruffini’s

25
Q

Un-encapsulated Receptors:

A

Merkel’s disks/cells
Hair follicle receptors

26
Q

Found in glabrous skin, capsulated, rapid adapting, sensitive to light touch, small rf

A

Meissner’s corpuscles

27
Q

Found in hairy and glabrous skin, capsulated, rapid adapting, large rf, lamellae

A

Pacinian’s corpuscles

28
Q

Found in deep layer of dermis, hair and glabrous skin, slowly adapting, large rf deteching skin stretch and pressure and thermoreceptor

A

Ruffini’s corpuscles endings

29
Q

Nonencapsulated, in basal cell layer of epidermis below glabrous skin of lips, genitalia, slowly adapting, small rf

A

Merkel’s receptors discs

30
Q

Meshlike arrangement of axons around hair follicle - discrete tacile stimulating
fast and slow adapting

A

Hair follicle receptors

31
Q

These corpuscles are important for sensing movement of an object across the skin

A

Meissner and Pacinian

32
Q

These corpuscles provides input related to displacement and velocity of the stimulus
Signaling the pressure and shape of the object through the skin

A

Merkel and Ruffini

33
Q

The body’s ability to transmit position sense

A

Proprioception

34
Q

Types of proprioception

A

Conscious and unconscious

35
Q

Detect muscle length

A

Muscle spindles

36
Q

Detect muscle strength

A

Golgi tendon organs

37
Q

Which adaption provide information regarding the dynamic aspect of kinesthesia

A

Rapid adapting

38
Q

Which adaption provide information about static aspect of kinesthesia

A

Slow adapting

39
Q
  • Single row of central nuclei - Smaller and shorter than the nuclear bag fiber
A

Nuclear chain fiber

40
Q
  • Cluster of nuclei located in a bag-like dilation at the center of the fiber
  • Largest intrafusal fiber
A

Nuclear bag fiber

41
Q

What type of endings do primary afferents type Ia have?

A

Annulospiral endings

42
Q

What type of endings do secondary afferents have?

A

Flower spray endings

43
Q

Stretch reflexis is also known as the:

A

Myotatic Reflex

44
Q

What fiber type is an extrafusal skeletal muscle fiber?

A

A-alpha

45
Q

What fiber type is an intrafusal muscle fiber?

A

A-gamma

46
Q

What fiber type is an preganglionic autonomic fiber?

A

B

47
Q

What fiber type is an postganglionic autonomic fiber?

A

C - unmyelinated

Histo & Neuro Part 2 (13 decks)

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