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5. Integumentary System

Nails

5. Integumentary System

Nails

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Integumentary System: your nails

Integumentary System: your nails

Hair, Hair follicle, and Nail Structure

Hair, Hair follicle, and Nail Structure

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Textbook Question

Nail growth occurs when:

a. cells in the nail plate undergo mitosis.

b. cells in the nail matrix undergo mitosis.

c. cells in the eponychium undergo mitosis.

d. cells in the medial and lateral nail folds undergo mitosis.

Textbook Question

Why don't you bleed when you cut your nails? Why don't you bleed when a hair is pulled?

Textbook Question

Multiple Choice More than one choice may apply. Label the figure with the letter of the correct structure. a. Nail bed b. Lunule c. Nail matrix d. Proximal nail fold e. Nail body

Textbook Question

The stratum corneum of the nail root, which extends over the exposed nail, is called the (a) hyponychium, (b) eponychium, (c) lunula, (d) cerumen.

Textbook Question

A man got his finger caught in a machine at the factory. The damage was less serious than expected, but the entire nail was torn off his right index finger. The parts lost were the body, root, bed, matrix, and eponychium of the nail. First, define each of these parts. Then, tell if this nail is likely to grow back.

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