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Brachial Plexus Flashcards

(78 cards)

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1
Q

Name the 5 parts of the brachial plexus

A

RoTonDa CuBao (5 roots, 3 trunks, 6 divisions, 3 cords, 5 branches)

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2
Q

What are the 5 roots of the brachial plexus

A

C5, C6, C7, C8, T1

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3
Q

What are the 3 trunks of the brachial plexus?

A

Superior, middle, inferior

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4
Q

What are the 6 divisions of the brachial plexus?

A

3 anterior, 3 posterior divisions

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5
Q

What are the 3 cords of the brachial plexus

A

Lateral, Posterior, Medial

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6
Q

What are the 5 branches of the brachial plexus

A

Musculocutaneous, Axillary, Radial, Medial, Ulnar

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7
Q

What are the anterior division fibers of the brachial plexus?

A
  1. Musculocutaneous
  2. Ulnar
  3. Median
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8
Q

What are posterior division fiber of the brachial plexus?

A
  1. Radial

2. Axillary

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9
Q

What are the medial cords of your brachial plexus?

A
  1. Median

2. Ulnar

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10
Q

What are the lateral cords of your brachial plexus?

A
  1. Musculocutaneos

2. Median

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11
Q

What innervates the rhomboids?

A

C5 - dorsal scapular

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12
Q

What innervates the serratus anterior?

A

Long thoracic

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13
Q

What innervates the subscapularis?

A

Upper subscapular

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14
Q

What innervates the latissimus dorsi

A

Thoracodorsal

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15
Q

What innervates the deltoid and teres minor?

A

Deltoid and Teres minor

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16
Q

The musculocutaneous nerve innervates what compartment of the arm?

A

anterior compartment

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17
Q

The radial nerve innervates what compartment of the arm?

A

posterior compartment

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18
Q

The ulnar nerve innervates what compartment of the arm?

A

intrinsic muscles of hand

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19
Q

What innervates the FCU and FDP?

A

medial

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20
Q

Erb-duchenne syndrome is due to a lesion in the ____

A

C5 and C6

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21
Q

Waiter’s tip is due to a damage in what nerve

A

C5 and C6

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22
Q

What syndrome?

Arm is adducted, extended, medially rotated, forearm is pronated, carpal flexors flex the hand at the wrist

A

Erb Duchenne

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23
Q

In Erb Duchenne, the sensation is ___ (medial/lateral)

A

lateral

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24
Q

Paralysis of the C8 to T1 results to

A

Klumpke

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25
In Klumpke, the alteration of the sensation is see on the ___ (medial/lateral) aspect of the hand, ring, little finger
medial
26
"ape" hand | "claw" hand
Klumpke
27
What muscles in the upper limb are affected in Klumpke? Distal/proximal
Distal
28
What syndrome weakness of the wrist and finger flexors due to excessive ABduction of the arm
Klumkpe
29
Winged scapula
long thoracic Serratus anterior
30
Nerve damage from radical mastectomy, stab wounds, thoracic surgery
long thoracic nerve
31
Nerve damage during surgical procedures of the axilla
Thoracodorsal nerve Latissimus dorsi
32
Patient have a difficulty elevating the trunk, difficulty using a crutch
Thoracodorsal nerve
33
What nerve may be damaged if there is a fracture of the surgical neck
axillary nerve
34
what nerve is damaged if the head of the humerus is dislocated?
axillary nerve
35
[What damage] A patient unable to ABduct the arm, altered sensation in the skin covering the deltoid
axillary nerve
36
Weakness in lateral rotation is due to a weakness of what muscle?
Teres minor muscle
37
Alteration of sensation in the skin covering of the deltoid suggests a damage in what nerve?
Axillary nerve
38
This muscle is compressed through the coracobrachialis muscle
musculocutaneous nerve
39
patient presents with weakness in flexion of the forearm at the elbow and weakness in supination
musculocutaneous nerve
40
Spiral fracture of the midshaft of the humerus can lead to a damage in _____
radial nerve
41
Patient felt pain and paresthesia in skin over the first dorsal interosseus muscle between the thumb and index finger
Radial nerve lesions
42
"wrist drop"
radial nerve
43
weakness in the ability to extend the hand at the wrist and a loss of extension at the MP joints of all digits
Radial nerve
44
Crutch pressing upward into the armpit
axillary nerve
45
downward shoulder dislocation
axillary nerve
46
fractures of the surgical neck of the humerus
axillary nerve
47
crutches pressing the axilla
radial nerve
48
saturday night palsy
radial nerve
49
supracondylar fracture of the humerus
median nerve
50
hand of benediction
median nerve
51
altered cutaneous sensation-lateral 3 and 1/2 digits and thenar eminence; flexion at wrist; flexion of lateral finger and flesxon of thumb
Median nerve
52
Lunate dislocation
carpal tunnel syndrome
53
numbness and pain over the palmar aspect of thumb, index, and middle fingers
carpal tunnel syndrome
54
___ hand weakness in opposition of thumb; remains adducted and extended
APE hand
55
What nerve is affected in Carpal Tunnel Syndrome
Median Nerve
56
part of the body formed posteriorly by the concave surfaces of the carpal bones and anteriorly by a thickening of the deep fascia
flexor retinaculum
57
The median nerve is entrapped here leading to Carpal Tunnel Syndrome
Flexor retinaculum / Transverse carpal ligament
58
What tendons pass through the carpal tunnel?
1. FDS x 4 tendons 2. FDP x 4 tendons 3. FPL x 1 tendon
59
What lies between the tendons of the FDS and FCR
median nerve
60
What tendon is directly medial to the to the median nerve?
FDS
61
What tendon is directly lateral to the median nerve
FCR
62
damage to the median nerve leads to pins and needles sensation. What is its distribution
1. Lateral 3 1/2 of fingers | 2. Weak thenar muscles
63
What branch of the median nerve passes superficially to the flexor retinaculum resulting to paresthesia
palmar cutaneous branch of the median nerve
64
medial epicondyle fractures
ulnar nerve
65
weakness in the flexion of medial fingers weakness in wrist flexion altered sensation of the medial 1 and 1/2 digits
ulnar nerve
66
Fracture of the hook of hamate
ulnar nerve
67
claw hand
ulnar nerve
68
weakness in the ability to ABduct/ADduct fingers
ulnar
69
crutch palsy
radial nerve
70
surgical neck fracture of humerus
axillary
71
midshaft spiral fractures humerus
radial nerve
72
supracondylar fracture of the humerus
median nerve
73
medial epicondyle fracture
ulnar nerve
74
hook of hamate fracture
ulnar nerve
75
What are the branches of the lateral cord
1. Musckulocutaneous | 2. Median
76
What are the branches of the medial cord?
1. Median | 2. Ulanr
77
What are the branches of the posterior cord?
1. Axillary | 2. Radial
78
What innervates the reginmental badge area in the deltoid?
axillary nerve

Anatomy (37 decks)

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