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Dermis Anatomy and Composition

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Questions and Answers

What is the main function of the eyebrows?

To keep sweat out of the eyes (correct)

To produce melanin for hair color

To protect the eyes from foreign objects

To regulate body temperature

What is the composition of the root and shaft of a hair?

Dead keratinized epithelial cells (correct)

Fat cells

Living epithelial cells

Muscle cells

What is the purpose of the arrector pili muscles?

To produce melanin for hair color

To cause hair to stand on end and produce goose bumps (correct)

To produce sebum for lubricating hair

To regulate body temperature

What is the main function of the eccrine sweat glands?

To regulate body temperature Signup and view all the answers

What is the effect of aging on the skin?

Decreased blood flow and elasticity Signup and view all the answers

What is the result of a full-thickness burn?

Destruction of the epidermis, dermis, and underlying tissues Signup and view all the answers

What is the main function of the dermis?

To provide elasticity and durability to the skin Signup and view all the answers

Which layer of the dermis contains dermal papillae?

Papillary layer Signup and view all the answers

What is the main component of the reticular layer?

Mat of collagen and elastic fibers Signup and view all the answers

What is the function of adipose tissue in the hypodermis?

To provide energy storage, insulation, and padding Signup and view all the answers

What is the function of hair on the head?

To act as a heat insulator and protect against ultraviolet light and abrasion Signup and view all the answers

What is the main function of the hypodermis?

To attach the skin to the underlying structure Signup and view all the answers