Understanding the Integumentary System

What is the primary function of epithelial tissue in the skin?

• To store fat

• To cover surfaces and form a protective barrier

• To enable movement

• To produce melanin

Which protein found in the epidermis helps waterproof and protect skin cells?

• Collagen

• Keratin

• Elastin

• Melanin

Describe the role of melanin in the skin.

• It stores fat for insulation.

• It produces oil to lubricate the skin.

• It protects cells from ultraviolet radiation.

• It enables movement of the skin.

Tags

NGSS.MS-LS1-5

What structures are contained within the dermis layer of the skin?

• Only epithelial cells

• Nerve cells, glands, and hair follicles

• Only fat cells

• Only muscle fibers

Explain the function of the hypodermis (subcutaneous layer).

• It produces melanin.

• It stores fat and helps with insulation.

• It forms a protective barrier.

• It produces sweat.

How do sebaceous glands contribute to skin health?

• By producing sweat

• By producing oil to lubricate the skin and hair

• By storing fat

• By producing melanin

What happens to the skin when the body is too hot?

• It produces more melanin.

• It contracts muscles to form goosebumps.

• It sweats, and evaporation cools the body.

• It stores more fat.

How does the skin produce Vitamin D?

• By storing fat

• In response to ultraviolet light exposure

• By producing sweat

• By producing melanin

Tags

NGSS.HS-LS1-3

What is the main difference between first-degree and third-degree burns?

• First-degree burns affect only the epidermis, while third-degree burns damage all skin layers and muscles.

• First-degree burns cause blisters, while third-degree burns do not.

• First-degree burns affect the dermis, while third-degree burns affect only the epidermis.

• First-degree burns damage muscles, while third-degree burns do not.

How does the skin act as a barrier to protect the body?

• By producing sweat

• By preventing microorganisms from entering and retaining moisture

• By storing fat

• By producing melanin