Skin

Question 1

Epidermis

Answer 1

Outermost protective layer of dead keratinized epithelial cells

Question 2

Dermis

Answer 2

The underlying layer of connective tissue with blood vessels, nerve endings, and the associated skin structures. Rests on the subcutaneous tissue that connects the skin to the superficial muscles

Question 3

Layers of the epidermis

Answer 3

Stratum corny him, stratum lucidum, stratum granulosum, stratum germinativum (where mitosis occurs)

Question 4

Epidermal cells contain

Answer 4

Protein pigment called melanin, which protects against radiation from the sun

Question 5

Dermis is composed of

Answer 5

Fibrous connective tissue with blood vessels, sensory nerve endings, hair follicles, and glands

Question 6

Sweat glands - eccrine

Answer 6

Regulate body temperature by releasing a watery secretion that evaporates from the surface of the skin

Question 7

Sweat glands - apocrine

Answer 7

Mainly in the armpits and groin area, the secretion contains bits of cytoplasm from the secreting cells. The cell debris attracts bacteria, in the presence of the bacteria on the skin results in body odor. The sebaceous glands release and oily secretion through the hair follicles that lubricates the skin and prevents drying. Oil is produced by holocrine secretion. (susceptible to becoming clogged and attracting bacteria)

Question 8

Appendages of the skin

Answer 8

Hair and nails. Both composed of a strong protein called keratin

Question 9

Skin

Answer 9

Largest organ of the body. Two layers, epidermis and dermis