Anatomy of spinal nerves Flashcards

(82 cards)

1
Q

Where is C2 dermatome located?

A

back of scalp and adams apple

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2
Q

Where is C3 dermatome located?

A

back of neck and jugular notch

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3
Q

Where is C4 dermatome located?

A

clavicle and shoulder tip

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4
Q

Where is the C5 dermatome located?

A

badge patch

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5
Q

Where is the C6 dermatome located?

A

thumb

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6
Q

Where is the C7 dermatome located?

A

middle finger

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7
Q

Where is C8 dermatome located?

A

little finger

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8
Q

Where is T1 located?

A

medial forearm

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9
Q

Where is T2 dermatome located?

A

medial arm and sternal angle

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10
Q

Where is T4 dermatome located?

A

male nipple

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11
Q

where is T10 dermatome located?

A

umbilicus

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12
Q

Where is T12 dermatome located?

A

pubic symphysis

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13
Q

Where is L1 dermatome located?

A

groin

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14
Q

Where is L2 dermatome located?

A

anterior thigh

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15
Q

Where is L3 dermatome located?

A

anterior knee

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16
Q

Where is L4 dermatome located?

A

medial malleolus

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17
Q

Where is L5 dermatome located?

A

dorsum of foot

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18
Q

Where is S1 dermatome located?

A

heel

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19
Q

Where is S2 dermatome located?

A

posteiror knee

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20
Q

Where is S3 dermatome located?

A

buttock

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21
Q

Where is S4 dermatome located?

A

perineum

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22
Q

Where is S5 dermatome located?

A

perianal skin

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23
Q

Where is the nerve point of neck?

A

just above midpoint of posterior border of SCM

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24
Q

What are the branches of the cervical plexus?

A

lesser occipital (C2); great auricular nerve(C2,3); transverse cervical (C2,3) and supraclavicular (C3,4) nerves

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25
What is the only spinal nerve that does any facial sensation?
greater auricular nerve
26
What is the cutaneous innervation of the posteiror neck?
posteiror rami of spinal nerves C2-C8
27
What is the cutaneous innervation of the upper anterolateral trunk ?
intercostal nerves
28
What nerves innervate the lower anterolateral trunk wall?
iliohypogastric and ilioinguinal nerves
29
What supplies the anatomical snuffbox?
radial nerve
30
What innervates the medial arm and forearm?
T1 and T2 anterior rami
31
What muscles do nerves of the cervical plexus innervate?
neck postural and strap muscles; diaphragm
32
What muscles do nerves of the brachial plexus innervate?
muscles of the upper limb; extrinsic back muscles
33
What muscles do T2-L3 innervate?
postural back muscles; intercostal muscles and anterolateral abdo wall
34
What muscles do nerves of the lumbosacral plexus innervate?
lower limb and perineal skeletal muscles
35
What muscle does C5 innervate?
deltoid
36
How do you test C5 myotome?
abduction
37
What muscles does C7 innervate?
pec. major and latissimus dorsi
38
How do you test C7 myotome?
adduction
39
What muscles does C8 innervate in the hand?
digit flexors
40
What muscles does C7 innervate in the hand?
digit extensors
41
What muscles does T1 innervate?
dorsal and palmar interossei
42
What nerve innervates biceps?
C5,6
43
What nerves innervate triceps brachii?
C7,8
44
What nerves innerate the carpal flexors?
C6,7
45
What nerves innervate the carpal extensors?
C7,8
46
What nerves innerate psoas major?
L2,L3
47
What nerves are involved in hip flexion?
L2,3
48
What nerves are involved in hip extension?
L5,S1
49
What nerves are invovled in knee flexion?
L5,S1
50
What nerves are invovled in knee extension?
L3,4
51
What nerves are invovled in dorsiflexion?
L4,5
52
What nerves are invovled in plantar flexion?
S1,2
53
What nerve is involved in inversion?
L4
54
What nerve is involved in eversion?
L5,S1
55
What spinal nerve is involved in the brachial reflex?
C5
56
What spinal nerve is involved in supinator/brachioradialis reflex?
C6
57
what nerve is involved in trceps reflex?
C7
58
What nerve is tested by knee reflex?
L4
59
What nerve is tested by ankle reflex?
S1
60
biceps jerk?
C5/C6
61
supinator jerk (brachioradialis)
C5/C6
62
triceps jerk?
C6/C7
63
quadriceps jerk?
L3/L4
64
achilles tendon jerk?
S1/S2
65
should abduction?
C5
66
shoulder adduction?
C5-7
67
elbow flexion?
C5,6
68
elbow extension
C7
69
wrist flexion?
C7-8
70
wrist extension?
C7
71
finger flexion?
C8
72
finger extension?
C7
73
finger abduction?
T1
74
hip flexion?
L1,2
75
hip adduction?
L2,3
76
hip extension?
L5-S1
77
knee flexion?
L5-S1
78
knee extension?
L3,4
79
ankle dorsiflexion?
L4
80
ankle eversion?
L5-S1
81
ankle plantar flexion?
S1,2
82
big toe extension?
L5