Podcast
Questions and Answers
What is the function of the matrix in nail growth?
What is the function of the matrix in nail growth?
- It is the base where nail cells grow. (correct)
- It holds the nail in place against the skin.
- It provides a flexible structure to the nail.
- It shields the nail from infections.
Which part of the nail is affected when a person has hangnails?
Which part of the nail is affected when a person has hangnails?
- The free edge
- The nail bed
- The nail wall
- The cuticle (correct)
What is the appearance of nails affected by melanonychia?
What is the appearance of nails affected by melanonychia?
- Black-colored nail plate (correct)
- Transparent and smooth
- Whitish discoloration
- Thinner and more flexible
Which nail disease is characterized by the nail plate disconnecting from the nail bed?
Which nail disease is characterized by the nail plate disconnecting from the nail bed?
What describes Beau’s Lines in the context of nails?
What describes Beau’s Lines in the context of nails?
Which condition is known as 'bitten nails'?
Which condition is known as 'bitten nails'?
What does the term 'nail pterygium' refer to?
What does the term 'nail pterygium' refer to?
What characterizes bruised nail beds?
What characterizes bruised nail beds?
Flashcards
Matrix
Matrix
The base part of the nail where growth occurs.
Nail Plate
Nail Plate
The visible part of the nail at the end of fingers or toes.
Free Edge
Free Edge
The part of the nail that extends beyond the fingertip.
Lunula
Lunula
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Cuticle
Cuticle
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Hangnails
Hangnails
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Onychia
Onychia
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Onycholysis
Onycholysis
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Study Notes
Nail Anatomy
- Matrix: The base of the nail where nail plate cells grow.
- Nail Plate: The visible part of the nail on the fingertip or toetip.
- Free Edge: The part of the nail extending beyond the finger or toetip.
- Nail Bed: Living skin under the nail plate, supporting its growth.
- Lunula: Crescent-shaped area where the matrix and nail bed meet.
- Cuticle: Semi-transparent skin covering the nail and matrix.
- Mantle: Pocket-like structure containing the nail root and matrix.
- Eponychium: Living skin covering the matrix area at the base of the nail plate.
- Hyponychium: Thickened skin under the free edge of the nail.
- Nail Groove: Along the sides of the nail plate.
- Nail Wall: The covering over the sides of the nail.
Nail Diseases
- Bruised Nail Beds: Blood clots under the nail plate, appearing dark purplish.
- Eggshell Nails: Weak, thin nails, more flexible in structure.
- Beau's Lines: Horizontal grooves across the nail.
- Hangnails: Small pieces of torn skin at the base of the nail.
- Leukonychia: White spots on the nail plate.
- Melanonychia: Darkening of the nail plate.
- Onychophagy: "Bitten nails," meaning the nails have been bitten.
- Plicatured Nail: Highly curved or "folded" nail plate.
- Nail Pterygium: Skin growth over the nail edge.
- Splinter Hemorrhages: Small blood spots under the nail plate (from trauma/impact).
Nail Disorders (Inflammation/Infection)
- Onychia: Sloughing of nail plate and inflamed matrix.
- Onychocryptosis: Ingrown nails.
- Onycholysis: Nail plate separating from the nail bed, often due to trauma or chemical reaction.
- Onychomadesis: Nail plate separating and falling off.
- Onychomycosis: Fungal infection of the nail plate.
- Paronychia: Swelling and redness around the nail plate (bacterial inflammation).
- Pyogenic Granuloma: Red tissue growth over the nail plate from the nail bed (severe inflammation).
- Tinea Pedis: Athlete's foot.
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