Brainscape's Knowledge GenomeTM

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


See full index

RUSVM Physiology I > RUSVM Physio Neuro Part 4 > Flashcards

RUSVM Physio Neuro Part 4 Flashcards

1
Q

The nervous system monitors what senses to maintain proper functions of the body?

A

Somatic and visceral

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

T/F sensory receptors are present in every tissue of the body

A

TRUE

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

What are the primary afferent neuron that receive the signal and send information to CNS

A

Primary or first-order neurons

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

What are the neurons called that conduct impulses from spinal cord or brainstem to thalamus (cross over to opposite sides before reaching thalamus)

A

Secondary or second-order neurons

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

What are the neurons called that conduct impulses from thalamus to primary somatosensory cortex

A

Tertiary or third order neurons

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

What signals originate from the cutaneous areas, muscle and joints

A

Somatosensory signals

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

What do somatosensory signals respond to?

A

They respond to mechanical, chemical or thermal stimuli. Produce sensation of touch, pressure vibration, pain warm/cold.

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

What signals originate from internal structures of the body?

A

Viscerosensory signals

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

T/F Some viscerosensory signals are consciously detectable

A

TRUE

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

What receptors have no special modification (free nerve endings), not myelinated and most common type.

A

Simple Receptors

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

What receptors are ensheathed by CT capsule and encapsulated portions of axon are not myelinated

A

Complex receptors

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

What receptors are specialized receptor cells

A

Special senses receptors

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

What sensory receptor deals with skin tactile sensibilities, deep tissue sensibilities, hearing, equilibrium and arterial receptors?

A

Mechanoreceptors

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

What sensory receptor deals with the feeling of temperature, warm receptors, cold receptors and all are free ending receptors

A

Thermoreceptors

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

What sensory receptor deals with pain and have free nerve endings

A

Nociceptors

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

What sensory receptor is for vision- rods and cones

A

Photoreceptors

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

What sensory receptors is for taste, smell, arterial oxygen, osmolality, blood CO2, blood glucose, AA, and FA

A

Chemoreceptors

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

What is the labeled line principle

A

It is the specificity of nerve fibers for transmitting only one modality of sensation.

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

T/F When a specific sensory fiber is stimulated, the perception is related with the type of fiber regardless of what type of stimulus excites the fiber

A

TRUE

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

What is the principle when it doesn’t matter if the stimulus is overheating, electricity, crushing or damage to the fiber, pain will always perceive pains.

A

Labeled line principle

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

What is the sensory classification of nerve fibers

A

Type A and Type C

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

What is the general classification called of fibers that are typically large and medium sized myelinated fibers of spinal nerves

A

Type A

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

Describe type C nerve fibers

A

are the small unmyelinated nerve fibers that conduct impulses at low velocities.

24
Q

What is the receptor potential or generator potential

A

it is whatever the type of stimulus that excites the receptor, its immediate effect is change of the membrane electrical potential of the receptor.

25
Q

What are the 4 ways to stimulate a sensor receptor?

A
  1. Mechanical deformation
  2. Application of a chemical to the membrane
  3. Change of the temp of the membrane
  4. Effects of electromagnetic radiation.
26
Q

T/F The more the receptor potential rises above the threshold level, the greater becomes the AP frequency.

A

True

27
Q

T/F Sensor receptors can not adapt either partially or completely to any constant stimulus after a period of time.

A

False- they CAN adapt.

28
Q

What is sensory adaptation?

A

It is the ability to diminish the extent of their depol. despite sustained stimulus strength.

29
Q

What are slow adapting receptors also called

A

Tonic Receptors

30
Q

What are fasting adapting receptors also called

A

Phasic Receptors

31
Q

What are examples of slow adapting receptors

A

Baroreceptors and chemoreceptors. Pain receptors usually NEVER adapt

32
Q

When are fast adapting receptors stimulated

A

They are stimulated only when the stimulus strength changes

33
Q

Give examples of fast adapting receptors

A

Pacinian corpuscle - skin deep pressure

34
Q

T/F Slow adapting receptors continue to transmit impulses to the brain as long as the stimulus is present

A

TRUE

35
Q

F/T Animals are able to detect different modalities of stimulus and know the location of a stimulus applied to the body.

A

TRUE

36
Q

T/F Each segment of the spinal cord innervates a specific receptive field of the body

A

TRUE

37
Q

What nerve fibers have specific receptive fields on the face

A

Trigeminal nerve (CN V)

38
Q

The sensations detected by the peripheral receptors include what

A

Touch, pain, temp, and position of the body.

39
Q

What receptors are free nerve endings

A

Nociceptors

40
Q

What are the two different types of pain

A

Fast pain and slow pain

41
Q

Which pain being only after 1 sec or more and than increases slowly over many seconds or minutes

A

SLOW Pain

42
Q

What pain is associated with tissue destruction, prolonged unbearable suffering and can occur in the skin and almost any deep tissue or organ.

A

SLOW PAIN

43
Q

What pain will respond to needle stimulation, knife cut or acute burns

A

Fast pain

44
Q

What are the 3 types of stimuli that can excite pain receptors

A

Mechanical, Thermal and chemical pain stimuli

45
Q

T/F Mechanical and thermal are both fast pain responses

A

True

46
Q

T/F Slow pain in all 3 types (mechanical, thermal, chemical)

A

TRUE

47
Q

T/F Encephalin and endorphin act in the CNS to inhibit presynaptic neurons transmitting pain sensation

A

TRUE

48
Q

what binds to opiate receptors and terminate pain signals

A

Encephalin and endorphin

49
Q

What is the knowledge of one’s position and can be conscious and unconscious?

A

Proprioception

50
Q

What are viscerosensory signals essential for

A

respiration, heart rate, blood pressure and micturition.

51
Q

Are visceral organs sensitive to cutting, heat or cold?

A

No, cutting needs A fibers; there is no temp. receptor

52
Q

What do nociceptors in the viscera respond to?

A

They respond to stretching, distension, spasm, inflammation and ischemia.

53
Q

T/F Visceral pain is poorly localized

A

true

54
Q

Nociceptors in the viscera detect changes in visceral structures caused by what

A

abnormal physical conditions or pathologic conditions. Ex. GI bloating/cramping, peritonitis

55
Q

What receptors respond to innocuous stimuli

A

Physiological receptors in the viscera

56
Q

Physiological receptors can be what receptors

A

Mechanoreceptors or chemoreceptors

Examples- Changes in BP, Changes in pCO2 or pO2, coughing reflex, sense of fullness.

RUSVM Physiology I (10 decks)

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