UE and LE Nerves Flashcards
1
Q
What muscles does the spinal accessory nerve (CN XI) supply?
A
Traps and SCM
2
Q
What muscle does the nerve to the piriformis supply?
A
Piriformis
3
Q
What nerve roots is the nerve to the piriformis
A
L5 - S2
4
Q
What nerve roots is the nerve to the obturator internus?
A
L5 - S2
5
Q
What muscles does the nerve to the obturator internus supply?
A
gemellus superior and obturator internus
6
Q
What muscles does the superior gluteal nerve supply?
A
glut medius, glut minimus, tensor fascia latae
7
Q
What nerve roots is the superior gluteal nerve?
A
L4 - S1
8
Q
What muscles does the inferior gluteal nerve supply?
A
glut maximus
9
Q
What nerve roots is the inferior gluteal nerve?
A
L5 - S2
10
Q
What nerve roots is the nerve to quadratus femoris?
A
L4 - S1
11
Q
What muscles does the nerve to quadratus femoris supply?
A
gemellus inferior and quadratus femoris
12
Q
What nerve roots is the obturator nerve?
A
L2 - L4
13
Q
What muscles does the anterior division of the obturator nerve supply?
A
adductor longus, adductor brevis, and gracilis
14
Q
What muscles does the posterior division of the obturator nerve supply?
A
obturator externus and adductor magnus
15
Q
What is the sensory supply of the obturator nerve?
A
cutaneous branch to the skin of the medial thigh
16
Q
What nerve enters the thigh by passing through the obturator canal?
A
obturator nerve - splits into ant + post divisions
17
Q
What nerve roots is the common peroneal nerve?
A
L4 - S2
18
Q
What nerve originates from the sciatic nerve at the popliteal fossa?
A
common peroneal nerve
19
Q
What nerve bifurcates just below the neck of the fibula?
A
common peroneal nerve - superficial and deep
20
Q
What muscles does the superficial peroneal nerve supply?
A
peroneus longus and peroneus brevis
21
Q
What nerve roots is the superficial peroneal nerve?
A
L4 - S2
22
Q
What nerve roots is the deep peroneal nerve?
A
L4 - S1
23
Q
What muscles does the deep peroneal nerve supply?
A
tibialis anterior, extensor hallucis longus, extensor digitorum longus, extensor digitorum brevis, peroneus tertius
24
Q
What nerve is responsible for foot drop and unopposed eversion during gait, if injured?
A
deep peroneal nerve
25
What is the sensory supply of the superficial peroneal nerve?
dorsum of the foot (except webbing between 1st and 2nd toes) + anterolateral part of lower leg
26
What is the sensory supply of the deep peroneal nerve?
webbing between 1st + 2nd toes of the foot on the dorsal surface
27
What nerve roots is the sciatic nerve?
L4 - S3
28
What muscles does the sciatic nerve supply?
biceps femoris, adductor magnus, semitendinosus, semimembranosus
29
Injury to what nerve could result in sciatic or piriformis syndrome?
sciatic nerve
30
What nerve passes through the femoral triangle?
femoral nerve
31
What nerve roots is the femoral nerve?
L2 - L4
32
What muscles does the femoral nerve supply?
iliacus, pectineus, sartorius, rectus femoris, vastus medialis/intermedius/lateralis
33
What nerves are a branch of the anterior division of the femoral nerve?
medial cutaneous nerve of the thigh and intermediate cutaneous nerve of the thigh
34
What is the sensory supply of the medial cutaneous nerve of the thigh?
skin on the medial side of lower 2/3 of thigh
35
What is the sensory supply of the intermediate cutaneous nerve of the thigh?
skin on the front of the thigh
36
What nerve is a branch of the posterior division of the femoral nerve?
saphenous nerve
37
What is the sensory supply of the saphenous nerve?
skin on the medial side of the leg
38
What nerve roots is the tibial nerve?
L4 - S3
39
What nerve is the terminal branch of the sciatic nerve?
tibial nerve
40
What muscles does the tibial nerve supply?
gastrocnemius, soleus, planters, popliteus, tibialis posterior, flexor hallucis, flexor digitorum longus
41
Injury to the tarsal tunnel or flexor retinaculum can damage what nerve?
tibial nerve
42
What nerves are a branch of the tibial nerve
medial and lateral plantar nerve
43
What muscles does the medial plantar nerve supply?
abductor hallucis, flexor hallucis brevis, flexor digitorum brevis, lumbrical 1
44
What muscles does the lateral plantar nerve supply?
plantar interossei, dorsal interossei, quadrates plantae, abductor digiti minimi, adductor hallucis
45
What nerves are sensory branches of the tibial nerve?
medial calcaneal nerve, lateral plantar nerve, sural nerve, medial plantar nerve
46
What is the sensory supply of the medial calcaneal branch?
heel
47
What is the sensory supply of the lateral plantar nerve?
lateral side of the sole
48
What is the sensory supply of the sural nerve?
lower posterolateral leg
49
What nerve is a branch from both tibial and common peroneal nerve?
sural nerve
50
What is the sensory supply of the medial plantar nerve?
medial side of the sole
51
What nerve roots is the musculocutaneous nerve?
C5 - C7
52
What muscles does the musculocutaneous nerve supply?
biceps, brachialis, and coracobrachialis
53
What is the sensory nerve of the musculocutaneous nerve?
lateral cutaneous nerve of the forearm
54
What is the sensory supply of the lateral cutaneous nerve of the forearm?
skin on the lateral side of the forearm
55
What are the nerve roots of the suprascapular nerve?
C5 - C6
56
What muscles does the suprascapular nerve supply?
infraspinatus and supraspinatus
57
What are the nerve roots of the subscapular nerve?
C5 - C6
58
What muscles does the subscapular nerve supply?
Teres major (lower) and subscapularis (upper and lower)
59
What are the nerve roots of the lateral pectoral nerve?
C5 - C7
60
What muscles does the lateral pectoral nerve supply?
pectoralis major
61
What are the nerve roots of the medial pectoral nerve?
C8 - T1
62
What muscles does the medial pectoral nerve supply?
pectoralis minor
63
What are the nerve roots of the long thoracic nerve?
C5 - C7
64
What muscles does the long thoracic nerve supply?
serratus anterior
65
If injured, what nerve would result in scapula winging?
long thoracic nerve
66
What are the nerve roots of the dorsal scapular nerve?
C5
67
What muscles does the dorsal scapular nerve supply?
rhomboid minor, rhomboid major, levator scapulae
68
What are the nerve root of the thoracodorsal nerve?
C6 - C8
69
what muscles does the thoracodorsal nerve supply?
latissimus dorsi
70
What are the nerve roots of the nerve to subclavius?
C5 - C6
71
What muscles does the nerve to subclavius supply?
subclavius
72
What are the nerve roots of the ulnar nerve?
C7 - T1
73
What nerve passes behind the medial epicondyle and pierces the flexor carpi ulnaris to enter the forearm?
ulnar nerve
74
What nerve enters the hand via guyon's canal/tunnel?
ulnar nerve
75
What muscles does the ulnar nerve supply?
flexor pollicis brevis, flexor digitorum profundus (medial half), flexor carpi ulna's, lumbricals 3 + 4
76
What is the sensory supply of the ulnar nerve?
medial 1/2 of the palm. skin of the dorsal aspect of the medial side, 1/2 of 4th + 5th digit
77
If injured, what nerve could result in cubital tunnel syndrome, Guyon's canal syndrome, and ulnar claw hand?
ulnar nerve
78
What nerve runs anterior to the lateral epicondyle of the humerus and passes under the extensor carpi radialis brevis?
radial nerve
79
What are the nerve roots of the radial nerve?
C5 - T1
80
What muscles does the radial nerve supply?
triceps, brachioradialis, anconeus, supinator, abductor pollicis longus, extensor digiti minimi, extensor pollicis brevis, extensor indicis, extensor carpi ulna's, extensor digitorum, extensor pollicis longus
81
What is the sensory supply of the radial nerve?
skin of the lower half of lateral side of the arm, skin of back of the arm and forearm, skin of lateral half of dorsum of hand, lateral 2 1/2 digits including thumb
82
What locations can the radial be injured?
axilla, musculospiral groove, around radial neck
83
If injured, what nerve could result in radial tunnel syndrome, posterior interosseous nerve syndrome, wrist drop?
radial nerve
84
What are the nerve roots of the axillary nerve?
C5 - C6
85
What muscles does the axillary nerve supply?
teres minor, deltoid
86
What is the sensory supply of the axillary nerve?
skin covering the lower half of the deltoid and upper part of long head triceps
87
What injuries could affect the axillary nerve?
dislocation of the should and fx of the surgical neck of the humerus
88
If injured, what nerve would result in "square shoulder" due to deltoid muscle atrophy and sensory loss to lower 1/2 fo deltoid?
axillary nerve
89
What are the nerve roots of the median nerve?
C5 - T1
90
What nerve enters the forearm beween 2 heads of pronator teres muscle and enters the hand via carpal tunnel?
Median nerve
91
What muscles does the median nerve supply?
flexor digitorum profundus (radial half), flexor policies longus, flexor carpu radials, flexor digitorum superficial, flexor polices brevis, abductor polices brevis, pronator quadrates, pronator trees, opponent pollicis
92
What is the sensory supply of the median nerve?
skin of lateral 2/3 of palm, dorsal tips of 1-3 fingers, palmar skin of lateral 3 1/2 fingers
93
If injured, what nerve could result in pronator teres syndrome, carpal tunnel syndrome, and ape hand deformity?
median nerve
94
What nerves branch from the medial cord of the brachial plexus?
ulnar nerve, medial pectoral nerve
95
What nerves branch from the posterior cord of the brachial plexus?
radial nerve, axillary nerve, upper and lower subscapular nerve, thoracodorsal nerve
96
What nerves branch from the medial and lateral cord of the brachial plexus?
median nerve
97
What nerves branch from the lateral branch of the brachial plexus?
musculocutaneous nerve, lateral pectoral nerve
98
What nerves arise from the roots fo the brachial plexus?
long thoracic nerve, dorsal scapular nerve
99
What nerves arise from the upper trunk of the brachial plexus?
thoracodorsal nerve, nerve to subclavius
