Chapter 32 Quiz

The multilayered organ that covers and protects the body is called ____.

• fatty tissue

• karatin

• epidermis

• skin

The outer layer of epidermal cells contains ____.

• follicles

• endodermis

• keratin

• sebaceous glands

Which of these describes the correct sequence for vitamin production in skin?

• exposure to sun--absorption of calcium--vitamin D production

• exposure to sun--vitamin D production--absorption of calcium

• Vitamin D production--absorption of calcium

• absorption of calcium--vitamin D production

Which layer of skin is the oil-producing structure shown here found in?

• epidermis

• subcutaneous

• dermis

• connective

What two primary skin layers are shown here?

• epidermis and dermis

• subcutaneous and epidermis

• subcutaneous and dermis

• nervous and dermis

Which protein is found in the epidermis layer of the skin?

• actin

• keratin

• melanin

• myosin

Which is the function of sebaceous glands?

• clean away particles

• lubricate the skin

• produce keratin

• supply essential nutrients

Which is a possible negative effect of staying indoors for long periods of time?

• decreased bone density

• delayed nerve reactions

• increased calcium levels

• vitamin D deficiency

Which explains why a person's skin becomes darker when frequently exposed to sunlight?

• Cells in the dermis layer become thicker and layered.

• Epithelial cells in the epidermis stretch to protect tissues.

• Exposure to sunlight causes melanin to be produced.

Which occurs in the integumentary system after a deep injury occurs to the system?

• Blood quickly clots to form a scab.

• Dermis cells close the injured vein.

• Epidermis cells increase their size.

• Red blood cells fight off pathogens.