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Questions and Answers
What is the free edge of the nail?
What is the free edge of the nail?
- The white crescent-shaped area at the base of the nail
- The part of the nail attached to the skin
- The skin surrounding the nail
- The part of the nail that extends beyond the fingertip (correct)
What is the lateral nail fold?
What is the lateral nail fold?
The fold of skin that overlaps the sides of the nail
What is the lanula?
What is the lanula?
The visible part of the nail matrix at the base of the nail
What is the eponychium?
What is the eponychium?
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What does the nail matrix do?
What does the nail matrix do?
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What is the root of the nail?
What is the root of the nail?
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What does the proximal nail fold refer to?
What does the proximal nail fold refer to?
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What is the body of the nail?
What is the body of the nail?
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What is the nail bed?
What is the nail bed?
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What is the hyponychium?
What is the hyponychium?
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What is a phalanx?
What is a phalanx?
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Study Notes
Nail Anatomy Overview
- Free Edge of Nail: The distal part of the nail that extends beyond the fingertip, providing protection to the underlying tissue.
- Lateral Nail Fold: The skin fold that surrounds the sides of the nail; it helps secure the nail in place.
- Lanula: The visible, white crescent-shaped area at the base of the nail; it is part of the nail matrix where new nail cells grow.
- Eponychium (Cuticle): The thin layer of dead skin found at the base of the nail; it seals the area to prevent pathogens from entering.
- Nail Matrix: The tissue under the base of the nail where cell division occurs, leading to new nail growth.
- Root of Nail: The hidden part of the nail that is embedded in the skin; this area contributes to the growth of the nail.
- Proximal Nail Fold: The fold of skin at the base of the nail that encases the root; serves as a protective barrier against infections.
- Body of Nail: The main visible part of the nail, composed of keratin, and provides strength and shape.
- Nail Bed: The skin beneath the body of the nail, rich in blood vessels and nerves; it supports the nail as it grows.
- Hyponychium: The area of thickened skin beneath the free edge of the nail; protects the nail bed and acts as a barrier.
- Phalanx: The bones in the fingers or toes to which the nail is attached; they provide structure and support for the digit.
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