The Brachial Plexus Flashcards
1
Q
V?
A
Posterior cord
2
Q
M
A
Posterior (superior) (division)
3
Q
I
A
Lower subscapular
4
Q
T
A
Musculocutaneous nerve
5
Q
C
A
Lower (trunk)
6
Q
The medial pectoral, brachial and antebrachial cutaneous nerves arise from what cord?
A
medial cord
7
Q
14
A
Trunks
8
Q
P
A
Medial (cord)
9
Q
L
A
Anterior (middle) (divison)
10
Q
What is L?
A
Axillary artery
11
Q
A
A
Upper (trunk)
12
Q
N
A
Musculocutaneous
13
Q
E?
A
Long thoracic nerve
14
Q
11
A
Cords
15
Q
What is B?
A
Posterior cord
16
Q
What is C?
A
Median nerve
17
Q
G?
A
Medial and lateral pectoral nerves
18
Q
H
A
Inferior (trunk)
19
Q
H
A
Upper subscapular
20
Q
What spinal nerves make the long thoracic nerve?
A
C5 - 7
21
Q
X?
A
Dorsal scapular nerve
22
Q
3
A
Nerve to subclavius
23
Q
Q
A
Posterior (cord)
24
Q
M?
A
Radial nerve
25
P
Posterior cord
26
J
Union of median nerve roots
27
What is A?
Lateral cord
28
In the arm (brachium), what nerve is present in the posterior compartment?
radial nerve
29
What is D?
Lateral root
30
8
Thoracodorsal nerve
31
15
Roots (anterior rami)
32
V
Anterior (ventral) rami
33
M
Musculocutaneous nerve
34
What are the muscles in the anterior segment of the arm known as?
flexors (biceps and brachilais)
35
What is K?
Cutaneous nerve
36
E
T1
37
O
Lateral (cord)
38
F
Middle pectoral
39
The nerve to the subclavius arises from what region of the brachial plexus?
the upper trunk (C5 & C6)
40
12
Suprascapular nerve
41
You encounter a patient who has had lymph nodes removed has subsequently experienced pain in their arm. They are unable to raise their arm pst 90 degrees. What spinal nerve is most likely injured?
Long thoracic nerve (C5, 6, 7, raise your arms to heaven!)
42
E
Long thoracic
43
2
Long thoracic nerve
44
What is B?
Superficial branch of radial nerve
45
In the arm, what are the grouop of muscles in the posterior compartment called?
extensors (triceps).
46
C?
Phrenic nerve
47
What regions of the brachial plexus make up the supraclavicular region?
the roots and trunks.
48
L?
Deep branch
49
The thoracodorsal nerve and the upper & lower subscapular nerves arise from what cord?
posterior cord
50
X
Posterior (dorsal) root
51
In the arm (brachium), what nerve is present in the anterior compartment?
musculocutaneous nerve
52
T
Posterior divisions
53
E
T1
54
S
Lower trunk (C8-T1)
55
F?
Medial brachial cutaneous nerve
56
What is G?
Median nerve
57
A?
C5
58
7
Medial antebrachial cutaneous nerve
59
V
Nerve to subclavius
60
D
C8
61
The dorsal scapular nerve arises from what spinal nerve?
C5 of the brachial plexus.
62
I?
Ulnar nerve
63
What is I?
Radial nerve
64
What is F?
Radial nerve
65
I
Ulnar nerve
66
W
Median nerve
67
B
Middle (trunk)
68
What is H?
Median nerve
69
What is E?
Interosseous membrane
70
6
Medial brachial cutaneous nerve
71
B
C6
72
W
Posterior (dorsal) rami
73
G
Anterior division of C8-T1
74
W?
Suprascapular nerve
75
T
Middle trunk (C7)
76
D
C8
77
13
Divisions
78
C
C7
79
K
Median nerve
80
4
Upper and lower subscapular nerves
81
N?
Radial nerve
82
N
Anterior (superior) (division)
83
L
Radial nerve
84
L
Median
85
R
Anterior division of C5-C7
86
What nerves make up the brachial plexus?
The ventral rami of C5 - T1.
87
S?
Subscapular nerve
88
You encounter a patient who nearly fell out of a tree, but grabbed onto a branch at the last minute. They experience pain and weakness in extending the fingers, and present a claw hand. What does the patient have, and what spinal nerves are affected?
Klumpke's Palsy; C8 & T1 spinal nerves.
89
In the forearm (antebrachium), what nerve is present in the posterior compartment?
radial nerve
90
You encounter a infant patient that was abnormally pulled out of the birth canal. The patient's arm is medially rotated, the wrist is flexed, and the patient is unable to move the elbow or forearm. What does the patient have, and what nerve roots are most likely affected?
Erb's Palsy; C5 & 6
91
5
Medial pectoral nerve
92
You encounter a patient whose job includes spending long hours in front of a computer typing reports. They experience pain when flexing their second and third digits. What nerve is most likely affected?
Median nerve (C6 - T1 spinal nerve roots).
93
In the forearm (antebracium), what nerves are present in the anterior compartment?
ulnar and median nerves
94
P
Posterior (cord)
95
B?
T1
96
N
Axillary nerve
97
W
Dorsal scapular
98
You encounter a patient who experienced a frature to the humerus when playing football. They cannot fully abduct their arm or rotate it laterally. What nerve is most likely affected?
axillary nerve (C5 & 6)
99
What is A?
Brachioradialis m.
100
I
Anterior (inferior) (division)
101
F
Posterior divisions of C5-T1
102
P?
Musculocutaneous nerve
103
D?
Nerve to the subclavius
104
You encounter a patient who has fractured their right humerus (medial epicondyle) in a car accident. They have difficult flexing the wrist and fingers, as well as difficulty abducting and adducting them. What nerves have most likely been injured?
ulnar nerve (C8, T1, C7)
105
T?
Medial cord
106
O?
Median nerve
107
A
C5
108
What is C?
Medial cord
109
The lateral pectoral nerve originates from what cord?
lateral cord.
110
U
Axillary nerve
111
1
Dorsal scapular nerve
112
What are the names of the sections of the brachial plexus (starting at the roots?)
Roots, trunks, divisions, cords, branches
113
U?
Lateral cord
114
What is E?
Medial root
115
What regions of the brachial plexus make up the infraclavicular region?
Divisions, cords and branches.
116
9
Terminal branches (peripheral nerves)
117
O
Medial cord
118
B
C6
119
Q?
axillary nerve
120
F
Superior (trunk)
121
What is D?
Ulnar nerve
122
S
Lateral root
123
V
Radial nerve
124
J
Thoracodorsal
125
R
Medial root
126
KK
Ulnar
127
A
C5
128
C
C7
129
K
Medial cutaneous nerves of the arm and forearm
130
K?
Superficial branch
131
U
Suprascapular
132
G
Lateral pectoral
133
J
Posterior (inferior) (divsion)
134
K
Posterior (middle) (divsion)
135
H?
Thoracodorsal nerve
136
U
Upper trunk (C5-C6)
137
S
Cords
138
Q
Lateral cord
139
What is J?
Axillary nerve
140
10
Lateral pectoral nerve
141
H
Axillary artery
142
M
Radial
143
R?
Axillary artery
144
What is F?
Ulnar nerve
145
D
Trunks
146
You encounter a patient who has broken their humerus and leg and are currently using crutches. They experience pain in moving the wrist. What spinal nerve roots are most likely affected?
The radial nerve (C5 - T1).
147
R
Lateral (cord)
148
Q
Medial (cord)
149
X
Ulnar nerve
150
J?
Anterior interosseous nerve
151
O
Axillary
152
G
Middle (trunk)
