1. Which of the following structures make up the integumentary system?

a. Skin, hair, nails, and glands

b. Heart, lungs, kidneys, and liver

c. Bones, muscles, and tendons

d. Brain, spinal cord, and nerves

Answer: a. Skin, hair, nails, and glands

Rationale: The integumentary system is composed of the skin, hair, nails,

and glands, all of which work together to protect the body from external

harm and regulate temperature.

2. Which layer of the skin contains blood vessels, nerves, and hair

follicles?

a. Epidermis

b. Dermis

c. Hypodermis

d. Subcutaneous tissue

Answer: b. Dermis

Rationale: The dermis is the middle layer of the skin, containing blood

vessels, nerves, and hair follicles, providing nourishment and sensation to

the skin.

3. Which skin condition is caused by an overproduction of sebum, leading

to clogged pores and inflammation?

a. Eczema

b. Psoriasis

c. Acne

d. Rosacea

Answer: c. Acne

Rationale: Acne is a common skin condition caused by excess oil

production, leading to clogged pores and inflammation, often affecting

adolescents and young adults.