Brainscape's Knowledge GenomeTM

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


See full index

PNS #3 > Brachial Plexus > Flashcards

Brachial Plexus Flashcards

1
Q

What rami make up the brachial plexus?

A

Anterior primary rami C5-T1

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

What fibers MAY be in the brachial plexus?

A

C4 and/or T2

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

What is the course of the brachial plexus to enter the axilla?

A

Travels laterally over rib 1

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

What is the order of things going from medical to lateral in the brachial plexus?

A

Roots to trunks to divisions to cords to terminal nerves

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

Every brachial plexus receives what from the sympathetic trunk?

A

Gray rami communicans

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

What are the three cervical ganglia giving rise to the gray rami communicans of the brachial plexus?

A

Superior
Middle
Inferior (stellate)

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

Roots pass between what structures to enter the posterior triangle?

A

Anterior and middle scalene with 1st rib

Scalene triangle

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

The roots of the brachial plexus are posterior and superior to what structure?

A

Subclavian artery

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

Roots of C5-6 combine making….?

A

Superior trunk

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

What is the superior trunk made of?

A

Roots C5-6

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

Root of C7 makes up….?

A

Middle trunk

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

What roots make up the middle trunk?

A

C7 root

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

The roots of C7-8 combine forming….?

A

Inferior trunk

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

The inferior trunk is made up of?

A

Roots C7-8

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

What does each trunk split into?

A

Anterior and posterior divisions

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

What do the anterior divisions supply?

A

Anterior compartments of arm and forearm

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

What do the posterior divisions supply?

A

Posterior compartments of arm and forearm

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

What are the anterior compartments of arm and forearm supplied by?

A

Anterior divisions

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

What are the posterior divisions of the arm and forearm supplied by?

A

Posterior divisions

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

Cords are named based on their relationship to what structure?

A

Axillary artery

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

What is the lateral cord formed from?

A

Anterior divisions of superior and middle trunks

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

Where is the lateral cord in relation to the axillary artery?

A

Lateral to second part of artery

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

What fibers are found in the lateral cord?

A

C5-C7

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

What forms the medial trunk?

A

Anterior division of inferior trunk

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What fibers are found in the medial cord?

A

C8-T1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Where is the medial cord in relation to the axillary artery?

A

Medial to second part of the artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What is the posterior cord made of?

A

The posterior divisions of the superior, middle, and inferior trunks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

What fibers are found in the posterior cord?

A

C5-T1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Where is the posterior cord in relation to the axillary artery?

A

Posterior to the second part of the artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

What nerves are given off directly from roots of the brachial plexus?

A

Dorsal scapular nerve

Long thoracic nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

The root of C5 gives of what nerve?

A

Dorsal scapular nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

What fibers are found in the dorsal scapular nerve?

A

C5 only

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

What does the dorsal scapular nerve innervate?

A

Lavator scapula
Rhomboid major
Rhomboid minor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

What muscle innervated by the dorsal scapular nerve also receives fibers from C3-4?

A

Levator scapula

35
Q

The roots of C5-7 give off what nerve?

A

Long thoracic nerve

36
Q

What fibers are found in the long thoracic nerve?

A

C5-7

37
Q

What does the long thoracic nerve innervate?

A

Serratus anterior

38
Q

What nerves does the superior trunk give off?

A

Suprascapular nerve

Nerve to subclavius

39
Q

What fibers are found in the suprascapular nerve?

A

C5-6

40
Q

What does the suprascapular nerve innervate?

A

Supraspinatus

Infraspinatus

41
Q

What fibers are found in the nerve to the subclavius?

A

C5-6

42
Q

What does the nerve to the subclavius innervate?

A

Subclavius

43
Q

What nerves are given off of the lateral cord of the brachial plexus?

A

Lateral pectoral nerve
Musculocutaneous nerve
Helps form Median nerve

44
Q

What fibers are found in the lateral pectoral nerve?

A

C5-7

45
Q

What does the lateral pectoral nerve innervate?

A

Pectoralis major

46
Q

Pectoralis major is double innervated by?

A

Lateral pectoral nerve

Medial pectoral nerve

47
Q

What are the two terminal branches of the lateral cord?

A

Musculocutaneous nerve

One contributing to the Median Nerve

48
Q

What fibers are found in the musculocutaneous nerve?

A

C5-7

49
Q

How many muscles does the musculocutaneous nerve innervate?

A

3

50
Q

What muscles does the musculocutaneous nerve supply?

A

Coracobrachialis
Biceps brachii (both heads)
Brachialis

51
Q

Coracobrachialis, biceps brachii, and brachialis are all innervated by what nerve?

A

Musculocutaneous nerve

52
Q

What muscle belly is pierced by the musculocutaneous nerve?

A

Coracobrachialis

53
Q

Corncob racialist is pierced by what nerve?

A

Musculocutaneous nerve

54
Q

What does the musculocutaneous nerve continue as in the forearm?

A

Lateral cutaneous nerve of the forearm

55
Q

The lateral cutaneous nerve of the forearm is a continuation of what nerve of the brachial plexus?

A

Musculocutaneous nerve

56
Q

How does the musculocutaneous nerve travel into the forearm to become the lateral cutaneous nerve of the forearm?

A

Between the biceps brachii and brachialis

Cut off: after crossing the elbow

57
Q

The skin on the lateral aspect of the forearm is supplied by what nerve?

A

Lateral cutaneous nerve of the forearm

58
Q

What does the lateral cutaneous nerve of the forearm supply?

A

Skin over the lateral aspect of the forearm, not hand

59
Q

What are the beaches given off of the medial cord?

A 
Medial pectoral nerve
Medial cutaneous nerve of the arm
Medial cutaneous nerve of the forearm
Ulnar nerve 
Median nerve
60
Q

What fibers are found in the medial pectoral nerve?

A

C8-T1

61
Q

What does the medial pectoral nerve innervate?

A

Pectoralis major

Pectoralis minor

62
Q

What does the medial cutaneous nerve of the arm innervate?

A

Skin of the medial arm between the axilla and elbow

63
Q

What fibers are found in the medial cutaneous nerve of the arm?

A

C8-T1

Some T2 though intercostalbrachial nerve

64
Q

What nerve receives fibers from T2 through a communication with the intercostobrachial nerve?

A

Medial cutaneous nerve of the arm

65
Q

What fibers are found in the medial cutaneous nerve of the forearm?

A

C8-T1

66
Q

Where does the medial cutaneous nerve of the forearm leave the medial cord?

A

Just distal to the medial cutaneous nerve of the arm

67
Q

What nerve is given off just distal to the medial cutaneous nerve of the arm?

A

Medial cutaneous nerve of the forearm

68
Q

What does the medial cutaneous nerve of the forearm supply?

A

Skin over biceps brachii, anterior and medial aspects of forearm distal to wrist

69
Q

Is there overlap of the medial cutaneous nerve of arm and forearm supply areas?

A

Yes

70
Q

What fibers are found in the ulnar nerve?

A

C8-T1

Sometimes C7

71
Q

How does the ulnar nerve travel?

A

Medial to the brachial artery, in the medial bicipital sulcus

72
Q

Which nerve of the medial cord doesn’t give off any branches in the arm?

A

Ulnar nerve

73
Q

How does the ulnar nerve cross the elbow?

A

Posterior side of the medial epicondyle in the sulcus of the ulnar nerve

74
Q

Where is the ulnar nerve easily palpated?

A

In the sulcus for the ulnar nerve

Funny Bone

75
Q

Where does the ulnar nerve travel in the forearm?

A

Between two heads of flexor carpi ulnaris

76
Q

What muscles does the ulnar nerve supply?

A

Flexor carpi ulnaris

Flexor digitorum profundus

77
Q

What are the two sensory branches of the ulnar nerve?

A

Dorsal branch of ulnar nerve

Palmar branch of ulnar nerve

78
Q

What ulnar branch supplies the skin on the ulnar side of posterior hand?

A

Dorsal branch, ulnar nerve

79
Q

What branch of the ulnar nerve supplies the skin over the hypothenar eminence?

A

Palmar branch, ulnar nerve

80
Q

How does the ulnar nerve travel to the wrist?

A

Travels deep to flexor carpi ulnaris to wrist, superficial to the flexor tinaculum, divides into two branches

81
Q

What are the two branches of the ulnar nerve in the hand?

A

Superficial

Deep

82
Q

What does the superficial branch of the ulnar nerve divide into?

A

3 terminal branches: proper palmar branches

83
Q

What do the proper palmar branches supply?

A

Palmar aspect little finger, medial half of the ring finger

84
Q

What does the brachial plexus supply?

A

Upper extremities

PNS #3 (1 decks)

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