Dermatomes Flashcards

1
Q

Which cervical nerve supplies the skin of the neck, temple, forehead, and occiput?

A

C2

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2
Q

What regions are innervated by C3?

A

Entire neck, posterior cheek, temporal area, and forward prolongation under mandible

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3
Q

Which areas of the body does C4 provide sensation to?

A

Shoulder area, clavicular area, upper scapular area

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4
Q

What regions are affected by C5?

A

Deltoid area, anterior arm, and ends at the wrist

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5
Q

Which cervical nerve innervates the anterior arm and radial side of the hand, including the thumb and index finger?

A

C6

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6
Q

What regions are innervated by C7?

A

Posterior arm and forearm to index, middle fingers

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7
Q

What areas does C8 primarily provide sensation to?

A

Medial arm and forearm to ring, and little fingers

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8
Q

What area of the body is supplied by T1?

A

Medial forearm to the lateral side of wrist

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9
Q

Which thoracic nerve supplies the medial side of the upper arm, medial elbow, pectoral, and midscapular areas?

A

T2

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10
Q

What region is innervated by T3-T6?

A

Upper thorax

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11
Q

Which thoracic nerves provide sensation to the costal margin?

A

T5-T7

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12
Q

What regions are affected by T8-T12?

A

Abdomen and lumbar region

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13
Q

Which lumbar nerve supplies the back, over the trochanter, and the groin area?

A

L1

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14
Q

What does L2 innervate?

A

Back and front of the thigh to the knee

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15
Q

What areas of the body are served by L3?

A

Back, upper buttock, anterior thigh and knee, medial lower leg

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16
Q

Which lumbar nerve provides sensation to the medial buttock, lateral thigh, medial leg, dorsum of the foot, and big toe?

17
Q

What regions does L5 innervate?

A

Buttock, posterior and lateral thigh, lateral aspect of leg, dorsum of foot, medial half of sole, first, second, and third toes

18
Q

What areas are affected by S1?

A

Buttock, posterior thigh, and posterior leg

19
Q

Which sacral nerve supplies the same region as S1 and also supports the groin area?

20
Q

What does S3 primarily supply?

A

Groin and medial thigh to knee

21
Q

What areas are innervated by S4?

A

Perineum, genitals, and lower sacrum

22
Q

What regions are supplied by C2 apart from the skin of the neck?

A

Temple, forehead, and occiput

23
Q

What does C3 innervate under the mandible?

A

Temporal area prolongation

24
Q

Which lumbar nerve supplies the medial lower leg in addition to the anterior thigh and knee?

25
What area is associated with the thoracic nerves T5-T7?
Costal margin
26
Which sacral nerve affects both the posterior thigh and the groin area?
S2
27
Which areas are primarily affected by T8-T12?
Abdomen and lumbar region
28
What does C5 innervate in the anterior arm apart from the deltoid area?
Base of the thumb
29
What cervical nerve supplies sensation to the shoulder area?
C4
30
Which thoracic nerve innervates the medial upper arm, medial elbow, and pectoral areas?
T2
31
What does S4 primarily innervate apart from the lower sacrum?
Perineum and genitals
32
Which cervical nerve provides sensation to the radial side of the hand?
C6
33
What lumbar nerve innervates the dorsum of the foot along with the first three toes?
L5
34
What areas does T1 supply apart from the medial forearm?
Base of the little finger
35
Which sacral nerve provides sensation to the groin and medial thigh?
S3