Questions and Answers
What is the term for the dermatome labeled as C2?
What is the term for the dermatome labeled as C3?
What is the term for the dermatome labeled as C4?
What is the term for the dermatome labeled as C5?
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What is the term for the dermatome labeled as C6?
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What is the term for the dermatome labeled as C7?
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What is the term for the dermatome labeled as C8?
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What is the term for the dermatome labeled as T1?
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What is the term for the dermatome labeled as T2?
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What is the term for the dermatome labeled as T3?
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What is the term for the dermatome labeled as T4?
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What is the term for the dermatome labeled as T5?
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What is the term for the dermatome labeled as T6?
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What is the term for the dermatome labeled as T7?
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What is the term for the dermatome labeled as T8?
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What is the term for the dermatome labeled as T9?
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What is the term for the dermatome labeled as T10?
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What is the term for the dermatome labeled as T11?
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What is the term for the dermatome labeled as T12?
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What is the term for the dermatome labeled as L1?
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What is the term for the dermatome labeled as L2?
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What is the term for the dermatome labeled as L3?
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What is the term for the dermatome labeled as L4?
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What is the term for the dermatome labeled as L5?
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What is the term for the dermatome labeled as S1?
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What is the term for the dermatome labeled as S2?
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What is the term for the dermatome labeled as S3?
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What is the term for the dermatome labeled as S4?
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What is the term for the dermatome labeled as S5?
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Study Notes
Dermatomen Overview
- Refers to skin areas supplied by single spinal nerve roots.
- Essential for diagnosing nerve injuries and conditions.
Cervical Nerves (C2 - C8)
- C2: Covers the posterior scalp and upper neck.
- C3: Sensation in the lower neck and part of the jaw area.
- C4: Supplies the shoulder area, upper chest, and parts of the diaphragm.
- C5: Front and outer aspect of the arm, shoulder area.
- C6: Extends down to the thumb and part of the forearm.
- C7: Sensation across the middle finger and back of the arm.
- C8: Covers the little finger and part of the forearm.
Thoracic Nerves (T1 - T12)
- T1: Involves the inner arm and upper chest areas.
- T2: Sensation around the upper chest and back areas.
- T3: Covers the areas around the third thoracic vertebra (upper back).
- T4: Associated with sensations around the nipple line.
- T5: Supplies the area just below the nipple.
- T6: Covers the lower chest and upper abdomen.
- T7: Sensation in the mid-abdomen area.
- T8: Involves sensation in the lower abdominal region.
- T9: Supplies the area around the lower ribs.
- T10: Covers sensations around the umbilicus (belly button).
- T11: Sensation in the area just below the umbilicus.
- T12: Involves sensations in the lower abdomen and groin region.
Lumbar Nerves (L1 - L5)
- L1: Covers the front and inner aspects of the hip.
- L2: Involves sensations in the thigh, areas above the knee.
- L3: Supplies the lower thigh and inner knee area.
- L4: Covers sensation around the medial aspect of the lower leg and foot.
- L5: Supplies the lateral aspect of the leg and dorsum (top) of the foot.
Sacral Nerves (S1 - S5)
- S1: Covers the heel, lateral foot, and back of the leg.
- S2: Supplies sensations in the posterior aspect of the leg.
- S3: Involves the area around the buttocks and perineum.
- S4: Covers the saddle area (genital region).
- S5: Supplies sensation in the very lower area of the perineum.
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Test your knowledge of dermatomes with these flashcards. Each card features a spinal nerve and its corresponding dermatome area, helping you to learn and memorize the concepts effectively. A perfect tool for anatomy students and medical professionals.
