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Integumentary System (Skin) — HS Anatomy & Physiology practice questions

10 multiple-choice questions and 9 flashcards on Integumentary System (Skin), about 7% of the HS Anatomy & Physiology bank. Every one carries a written rationale.

Written and maintained by the CoStudy team · last updated 2026-10-02 · how we write and review questions

What this chapter covers

Integumentary System (Skin) is one of 13 chapters in CoStudy's HS Anatomy & Physiology bank, and it holds 10 of the bank's 150 multiple-choice questions — roughly 7% of the total. That proportion is not arbitrary: chapters follow the certifying body's published exam outline, and the number of questions in each is set by that domain's published weight, so the share of your practice time this chapter takes matches the share of the real exam it accounts for.

Studying by chapter is worth doing once you have a diagnostic score. A single overall percentage tells you whether you are close; it does not tell you which domain is dragging. Working a weak chapter in isolation, and re-testing it in isolation, is the fastest way to move a score that has stalled — and it is why the mock exams in CoStudy report by domain rather than as one number.

Free Integumentary System (Skin) practice questions

5 questions drawn from this chapter, with the full rationale shown — the controlling principle behind the right answer, and why each wrong option tempts and fails.

Which skin layer contains blood vessels, nerves, hair follicles, and sweat glands?

  1. Epidermis
  2. Dermis
  3. Stratum corneum
  4. Hypodermis

Answer: B — Dermis

B) Correct — The dermis is connective tissue that supports the epidermis. A) Has no blood vessels; it is fed by the dermis. C) Is the top layer of dead epidermal cells. D) Is mostly fat that insulates and stores energy.

A burn that blisters and damages the epidermis and part of the dermis is a:

  1. second-degree burn
  2. first-degree burn
  3. third-degree burn
  4. fourth-degree burn

Answer: A — second-degree burn

A) Correct — Partial-thickness burns are painful and blister. B) Affects only the epidermis, like a mild sunburn. C) Destroys the full thickness of the skin, often without pain. D) Extends into muscle or bone.

The largest organ of the human body is the:

  1. liver
  2. lungs
  3. small intestine
  4. skin

Answer: D — skin

D) Correct — The skin covers about 2 m² and makes up about 16% of body weight. A) Is the largest internal organ. B) Have a huge internal surface area but are not the largest organ. C) Is the longest part of the digestive tract, not the largest organ.

Sweating lowers body temperature because:

  1. sweat is colder than the skin when it is released
  2. sweat blocks heat from entering the body
  3. blood vessels in the skin narrow
  4. heat is used to evaporate sweat

Answer: D — heat is used to evaporate sweat

D) Correct — Evaporation carries heat away from the skin. A) Sweat leaves the body at body temperature. B) Sweat cools by evaporating, not by blocking. C) Narrowing conserves heat; vessels widen to release it.

Melanin protects the skin by:

  1. producing sweat
  2. absorbing ultraviolet light
  3. making the skin waterproof
  4. killing bacteria on the surface

Answer: B — absorbing ultraviolet light

B) Correct — It shields the DNA in skin cells from UV damage. A) Sweat glands produce sweat. C) Keratin and lipids in the outer layer do this. D) Acidic oils and immune cells help with this.

Integumentary System (Skin) flashcards

4 cards from the 9 in this chapter.

Epidermis cell types?

Keratinocytes (most), melanocytes (pigment), Langerhans (immune), Merkel (touch).

Burn classification?

First-degree: epidermis only (redness). Second-degree: epidermis and part of dermis (blisters). Third-degree: full thickness, may be painless because nerves are destroyed.

Why is sweat important?

Cools body via evaporation. Also excretes some wastes (urea, salts).

Skin layers?

Epidermis (outer), dermis (middle), hypodermis (subcutaneous, fat).

Practise the full chapter

These are a sample. The full Integumentary System (Skin) chapter runs 19 items with per-chapter progress tracking, on the web and in the iOS app.

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