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Free Practice Quiz Question List

03 The Integumentary System Online Quiz Questions

Use this free practice quiz with 20 questions to review 03 The Integumentary System, test your knowledge, and prepare for your next test or exam.

20 questions
01
Choose one
1 point

During exercise, a person becomes too warm. Which skin responses help release heat?

  1. A

    Sweating decreases and skin blood vessels narrow.

  2. B

    Sweating increases and skin blood vessels widen.

  3. C

    Sweating increases and skin blood vessels narrow.

  4. D

    Sweating decreases and skin blood vessels widen.

02
True or false
1 point

The skin barrier is not impenetrable: cuts and burns can damage it and raise the risk of fluid loss or infection.

  1. A

    True

  2. B

    False

03
Choose all
1 point

Select all statements supported by the description of the epidermis and its protective role.

  1. A

    The epidermis helps limit water loss.

  2. B

    The outer surface of the epidermis has tightly packed, keratin-rich cells.

  3. C

    The skin barrier cannot be damaged by cuts or burns.

  4. D

    The epidermis blocks many microbes and harmful substances.

04
Written response
1 point

What pigment made by cells in the epidermis helps protect the skin against ultraviolet radiation?

05
Choose one
1 point

What happens when UVB light reaches the skin, as an early step in vitamin D production?

  1. A

    UVB triggers the skin to produce active vitamin D after the kidneys process it.

  2. B

    UVB causes the skin to produce calcium, which the liver converts to vitamin D₃.

  3. C

    UVB triggers a chemical change in a skin precursor molecule, producing vitamin D₃.

  4. D

    UVB causes the kidneys to produce vitamin D₃ before it reaches the skin.

06
Fill in the blank
1 point

Touching a hot surface can trigger a rapid response involving the nervous system and skeletal muscles.

07
True or false
1 point

Active vitamin D helps the digestive system absorb calcium, supporting normal bone health.

  1. A

    True

  2. B

    False

08
Choose all
1 point

Select all sensations detected by receptors and nerve endings in the skin.

  1. A

    Touch

  2. B

    Pressure

  3. C

    Vibration

  4. D

    Smell

  5. E

    Temperature

  6. F

    Pain

09
Written response
1 point

What is the term for narrowing of the skin’s blood vessels in cold conditions?

10
Fill in the blank
1 point

The skin and its accessory structures, including hair, nails, and glands, make up the .

11
Choose one
1 point

Which statement best describes the hypodermis?

  1. A

    The epidermis lies beneath the skin and contains most of its fat.

  2. B

    The dermis lies beneath the skin and consists only of tightly packed keratin-rich cells.

  3. C

    The hypodermis lies beneath the skin and contains connective tissue and fat that cushion and insulate the body.

  4. D

    The epidermis lies beneath the skin and provides the body’s main layer of insulation.

12
Open ended
1 point

Compare how the skin helps regulate body temperature when the body is too warm and when it is cold. Include the roles of sweat, skin blood flow, and the hypodermis.

13
Choose one
1 point

Which skin layer contains blood vessels, glands, hair follicles, and sensory nerve endings?

  1. A

    The epidermis contains blood vessels, glands, hair follicles, and sensory nerve endings.

  2. B

    The dermis contains blood vessels, glands, hair follicles, and sensory nerve endings.

  3. C

    The hypodermis is the outer skin layer and contains all sensory nerve endings.

  4. D

    The epidermis is the deeper connective-tissue layer containing most hair follicles.

14
Choose one
1 point

Which two body systems work with the skin to help control body temperature?

  1. A

    The nervous and circulatory systems

  2. B

    The digestive and skeletal systems

  3. C

    The urinary and respiratory systems

  4. D

    The muscular and reproductive systems

15
Written response
1 point

Which layer beneath the skin contains fat that helps insulate the body?

16
Choose one
1 point

A skin sample contains blood vessels, glands, hair follicles, and sensory nerve endings. Which skin layer is it from?

  1. A

    Epidermis

  2. B

    Dermis

  3. C

    Hypodermis

  4. D

    Keratin

17
Choose one
1 point

Which role of melanin helps protect the body when ultraviolet radiation reaches the skin?

  1. A

    It narrows blood vessels to conserve heat.

  2. B

    It produces sweat that carries heat away.

  3. C

    It helps protect against ultraviolet radiation.

  4. D

    It forms the fat layer beneath the skin.

18
True or false
1 point

A burn can damage the skin barrier and increase the risk of fluid loss or infection.

  1. A

    True

  2. B

    False

19
Choose one
1 point

When a person is cold, which change in skin blood vessels helps conserve body heat?

  1. A

    Vasoconstriction reduces near-surface blood flow and helps conserve heat.

  2. B

    Vasodilation increases near-surface blood flow and helps conserve heat.

  3. C

    Sweating increases and prevents heat from escaping.

  4. D

    Melanin production increases and warms the skin.

20
Written response
1 point

After the skin begins producing vitamin D₃, which two organs further process it, in order?