Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

TERM 2 > Neurology #3 > Flashcards

Neurology #3 Flashcards

(56 cards)

Start Studying
1
Q

What is a dermatone?

A

An area of the skin that is a combination of the receptive field of the sensory axons originating from a single nerve

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

How are dermatone’s named?

A

they are named according to the spinal nerve which supplies them.

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

Where does C5 supply nerves?

A

Lateral shoulder and arm

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

Where does C6 supply nerves?

A

Thumb, index finger, radial border of the hand

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

Where does C7 supply nerves?

A

Middle finger

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

Where does C8 supply nerves?

A

Digiti minimi (i.e ulnar border of hand)

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

Where does T1 supply nerves?

A

Medial Elbow (i.e heart attack)

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

What are the thoracic dermatomes land marks of T2-T12?

A

intercostal nerves form segmental strips on thorax

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

What are the thoracic dermatomes land marks of T10?

A

Goes across the umbilicus

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

What are the thoracic dermatomes land marks of T12?

A

Subcostal nerve which goes across upper edge of pubic bone

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

What are cutaneous receptors?

A

Sensory receptors found in the dermis or epidermis

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

Where are meissner corpuscles & merkel cells found?

A

found in the uppermost part of the dermis

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

Where are meissner corpuscles & merkel cells especially found?

A

Superficial layers of glabrous skin hairless skin (fingertips, lips)

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

What do meissner corpuscles & merkel cells detect?

A

Fine discriminative touch

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

Where are Ruffini corpuscle found?

A

They are found in the glabrous skin

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

What are Ruffini corpuscle sensitive to?

A

Skin stretch

Slippage of objects along the skin allowing modulation of grip on an object

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

Where are the Pacinian corpuscles found?

A

Deeper skin and subcutaneous tissue

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

What do Pacinian corpuscles detect?

A

Pressure or deep touch

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

What are Bulbs of Krause?

A

Multi layered capsules with many branched nerve endings.

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

What are bulbs of Krause suppose to help us feel?

A

Extreme cold

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

What are two classifications of the morphology of a receptor?

A

Naked free nerve endings that are unmyelinated Example Nociceptors
Encapsulated sensory receptors often referred to as sense organs
Example: Pacinian Corpuscle

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

What do photoreceptors respond to?

A

Photoreceptors respond to light

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

What do chemoreceptors respond to?

Study These Flashcards
A

Respond to chemical stimuli e.g smell taste

24
Q

What do thermoreceptors respond to?

Study These Flashcards
A

Respond to temperature, heat, cold.

25
What do mechanoreceptors respond to?
Respond to mechanical stress and depolarize when their membranes are physically stretched.
26
Damage to the nervous system due to disease or trauma, may cause what kind of pain?
Neurogenic pain
27
What are two major types of nociceptors?
A-Delta | C aka C-PMN (polymodal)
28
Which nociceptor is myelinated?
A-Delta
29
What kind of stimulus does A-Delta nociceptors pick up?
Thermal | Mechanical Pressure that can potentially damage tissue
30
What kind of stimulus does C nociceptors pick up?
Thermal Mechanical Pressure Chemical
31
Which nociceptors carries faster A-Delta or C?
A-Delta carries faster
32
Which noncicpetors responds to deeper part of the skin and in every other tissue except nervous tissue?
C aka C-PMN
33
Which nociceptor are able to pick up the sharpest sensations?
A-Delta
34
Sharp, stinging, cutting, stabbing sensation is usually associated with which type of nocicpetor?
A-Delta
35
Dull, burning aching throbbing, itch is usually associated with which type of nocicpetor?
C
36
What is the pain response of A-Delta?
Withdraw response
37
What is the pain response of C-PMN?
immobilization
38
What is proprioception?
It is the ability to know where your body is in space without the use of vision.
39
What do muscle spindles detect?
Rate of change in muscle length | Static length of the muscles
40
Where are muscle spindles found most abundantly?
delicate fine contractile activity, they are especially abundant in the small muscles of the hand and foot.
41
What is a 1A Fibre?
Unipolar neuron coming from a muscle spindle
42
What are muscle spindles?
Sensory receptors located within muscles and consist of intrafusal muscle fibers and peripheral axons of 1A unipolar sensory neurons.
43
What is the most abundant type of lower motor neuron?
Alpha motor neuron
44
Which motor neuron are actually used in the force for muscle contraction?
Alpha Motor Neuron
45
What does alpha motor neurons innervate?
Extrafusal muscle fibers (aka skeletal muscle cells) outside of the spindle. Goes to the muscle fibre.
46
What lower motor neuron innervates intrafusal fibres?
Gamma motor neuron
47
Is there more gamma motor neurons or alpha motor neurons?
Alpha Motor Neurons
48
What horn of the Spinal column are gamma motor neurons located?
Anterior horn
49
What Lower Motor Neuron adjust the sensitivity of the muscle spindles?
Gamma motor neuron
50
How does the stretch reflex work as a protective reflex?
Muscle lengthens too quickly --> Muscle spindle is stretched --> 1a activity increases --> increases alpha motor neuron activity --> Extrafusal fibers contract and resist the stretching another set of neurons causes the antagonist of the action to relax.
51
How cant you tell whether some posses a high gamma gain?
If it is more difficult to bend a patients arm at the elbow back and forth, then they have higher gamma gain as opposed to someone whose arm moves easily has lower gamma gain
52
What is a unipolar neuron coming from a Golgi tendon organ referred to as?
1b Fibre
53
What is the function of the Golgi tendon?
Monitor muscle tension
54
Where are Golgi tendons located?
near the transition between muscle and tendon, the musculotendinous junction
55
Does Golgi tendon organ respond to both to passive and stretch? and which one is it most sensitive to?
Yes most sensitive to stretch.
56
What is autogenic inhibition mean?
When muscle contraction exceeds a certain threshold the muscles relaxes due to the influence of Golgo tendon organs

TERM 2 (12 decks)

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