Brainscape's Knowledge GenomeTM

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


See full index

MSK test 2 > MSK 9 > Flashcards

MSK 9 Flashcards

1
Q

What happens to the muscles, when the nerves get injured?

A

the muscles cannot receive sensory signals and will first produce numbness and paralysis and then will result in flaccid paralysis

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

what does flaccid paralysis mean?

A

when the muscle cannot contract and results in becoming floppy and immobile

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

where does the musculocutaneous nerve originate from?

A

the terminal branch of the lateral cord

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

what are the motor functions of the musculocutaneous nerve?

A

motor to anterior arm:
- coracobrachialis
- biceps
- brachialis

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

what are the sensory functions of the musculocutaneous nerve?

A

skin of anterolateral forearm

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

what muscle does the musculocutaneous nerve travel through?

A

coracobrachialis muscle

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

where is the most likely site of injury for the musculocutaneous nerve

A

when it travels through the coracobrachialis muscle belly

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

what is the name of the musculocutaneous nerve once it passes the cubital fossa

A

lateral cutaneous nerve of forearm

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

where does the axillary nerve originate from?

A

the terminal branch of the posterior cord

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

what is the motor function of the axillary nerve?

A

motor to lateral shoulder:
- deltoid
- teres minor

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

what is the sensory function of the axillary nerve?

A

sensory to:
- skin to lateral shoulder

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

the axillary nerve travels through where?

A

the quadrangular axillary space and wraps around the posterior aspect of the humeral neck

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

where is the most likely site of injury for the axillary nerve?

A

when it travels around the surgical neck of the humerus

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

where does the radial nerve originate from?

A

the terminal branch of the posterior cord

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

what are the motor functions of the radial nerve

A

motor to:
- extensor muscles of posterior arm
- extensor muscles of posterior forearm
- brachioradialis
- supinator muscle

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

what are the sensory functions of the radial nerve?

A

sensory to:
- skin of posterior arm, forearm, and hand
- dorsal surface of digits 1,2,3 and lateral 1/2 of digit 4

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

where does the radial nerve travel?

A

travels posteriorly, inferior to the quadrangular axillary space and wraps around the posterior aspect of humeral shaft

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

where is the most likely site of injury of the radial nerve

A

the radial groove of humerus

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

the radial nerve turn into ?

A

the posterior cutaneous nerve of forearm and lower lateral cutaneous nerve of arm

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

the deep branch of the radial nerve innervates?

A

the muscles in the posterior compartment of the forearm

21
Q

the superficial branch of the radial nerve contributes to ?

A

the cutaneous innervation of the dorsal hand and fingers

22
Q

what is the injury called when there is a fracture of radial groove of humerus

A

radial nerve palsy or wrist drop

23
Q

where does the median nerve originate from?

A

the terminal branch of lateral and medial cords

24
Q

what are the motor functions of the median nerve?

A

motor to muscles of the anterior forearm and hand
- flexors of wrist
- pronators of forearm
- flexors of digits 1,2,3
- lumbricals 1 and 2
- thenar muscles

25
Q

what are the sensory functions of the median nerve?

A

the palmer surface of digits 1,2,3 and lateral half of digit 4

26
Q

what is the pathway of the median nerve?

A

heads inferiorly from axilla, travelling down antero-medial arm and travels down to the anterior forearm

27
Q

where is the most likely site of injury for the median nerve?

A

the carpal tunnel

28
Q

explain carpal tunnel syndrome

A

compression of the median nerve as it passes through the carpal tunnel

29
Q

what are the symptoms of carpal tunnel syndrome?

A

will first have numbness and tingling in the first 3.5 digits and weakness of thumb movement and then the sensory changes can radiate into the forearm and even the axilla

30
Q

what is carpal tunnel release?

A

partial or complete surgical division of the flexor retinaculum

31
Q

where does the ulnar nerve originate from?

A

the terminal branch of medial cord

32
Q

what is the motor function of the ulnar nerve?

A

motor to medial forearm and hand:
- lumbricals 3 &4
- hypothenar group
- palmer and dorsal interossei

33
Q

what is the sensory function of the ulnar nerve?

A

palmer and dorsal surface of medial 1/2 digit 4 and all of digit 5

34
Q

what is the pathway of the ulnar nerve?

A

head inferiorly from axilla, travelling down antero-medial arm, passes posterior to medial epicondyle and travels down the medial forearm

35
Q

where is the most likely site of injury for the ulnar nerve?

A

when it passes the medial epicondyle

36
Q

what is the injury called when there is a fracture of the medial epicondyle of humerus?

A

ulnar claw hand

37
Q

what is a dermatome?

A

specific area on the skin innervated by a specific spinal root

38
Q

what is a myotome?

A

specific group of muscles innervated by a particular spinal root

39
Q

what is the dermatome of C5?

A

sensation of skin of anterior/lateral arm (skin over deltoid)

40
Q

what is the myotome of C5?

A

muscle strength of deltoid (arm abduction)

41
Q

what is the dermatome of C6?

A

sensation of anterior skin of thumb

42
Q

what is the myotome of C6?

A

muscle strength of biceps (elbow flexion)

43
Q

what is the dermatome of C7?

A

sensation of anterior skin of digits 2 and 3

44
Q

what is the myotome of C7?

A

muscle strength of triceps (elbow extension)

45
Q

what is the dermatome of C8?

A

sensation of skin of digits 4 and 5

46
Q

what is the myotome of C8?

A

muscle strength of finger flexors

47
Q

what is the dermatome of T1?

A

sensation of skin of antero/medial elbow

48
Q

what is the myotome of T1?

A

muscles strength of finger abductors

MSK test 2 (6 decks)

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