Integumentary System: 7th Grade Quiz

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Integumentary System: 7th Grade Quiz - Quiz

What do you understand with the Integumentary system? The integumentary system is an organ system that comprises our hairs, nails, skin, and exocrine glands. Take this 7th-grade integumentary system quiz to see how much do you know and learn more about the integumentary system and its functions.


Questions and Answers
  • 1. 

    What is the Integumentary System made of?

    • A.

      Teeth

    • B.

      Skin

    • C.

      Bones

    • D.

      Nails

    • E.

      Hair

    • F.

      Eyes

    • G.

      Sweat Glands

    Correct Answer(s)
    B. Skin
    D. Nails
    E. Hair
    G. Sweat Glands
    Explanation
    The integumentary system is made up of the skin, nails, hair, and sweat glands. The skin is the largest organ of the body and serves as a protective barrier against external factors such as bacteria, UV radiation, and dehydration. Nails are made of keratin and provide protection to the fingertips and toes. Hair helps regulate body temperature and provides protection to the scalp. Sweat glands produce sweat, which helps regulate body temperature and eliminate toxins from the body.

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  • 2. 

    The skin is the largest organ in your body.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The skin is indeed the largest organ in the human body. It covers the entire external surface and serves as a protective barrier against the environment. The skin consists of three layers: the epidermis, dermis, and subcutaneous tissue. It performs various functions such as regulating body temperature, protecting against UV radiation, preventing water loss, and housing sensory receptors. Additionally, the skin plays a vital role in immune defense and helps in the synthesis of vitamin D.

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  • 3. 

    Which of the following are true? The skin:

    • A.

      Is the largest sense organ.

    • B.

      Recieves information about your environment.

    • C.

      Does not protect your body in any way.

    Correct Answer(s)
    A. Is the largest sense organ.
    B. Recieves information about your environment.
    Explanation
    The skin is the largest sense organ because it covers the entire body and contains numerous sensory receptors that allow us to perceive touch, temperature, and pain. Additionally, the skin receives information about the environment through these sensory receptors, allowing us to be aware of our surroundings and react accordingly. The statement that the skin does not protect the body in any way is incorrect, as the skin acts as a barrier against harmful substances, pathogens, and UV radiation, providing a protective function for the body.

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  • 4. 

    Which of the following are functios of the Integumentary System?

    • A.

      Protects the body from physical and chemical injuries

    • B.

      Makes the skin darker

    • C.

      Sensory Response

    • D.

      Formation of Vitamin D

    • E.

      Processes fat in the stomach

    • F.

      Regulation of body temperature

    • G.

      Ridding the body of wastes

    Correct Answer(s)
    A. Protects the body from physical and chemical injuries
    C. Sensory Response
    D. Formation of Vitamin D
    F. Regulation of body temperature
    G. Ridding the body of wastes
    Explanation
    The integumentary system is responsible for protecting the body from physical and chemical injuries by acting as a barrier. It also plays a role in sensory response, allowing us to feel touch, pressure, temperature, and pain. The skin is involved in the formation of vitamin D when exposed to sunlight. Additionally, the integumentary system helps regulate body temperature through sweating and blood vessel constriction or dilation. It is not involved in processes such as making the skin darker or processing fat in the stomach.

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  • 5. 

    List one of the three skin layers.

    Correct Answer(s)
    Epidermis
    Dermis
    Subcutaneous
    Explanation
    The answer provided lists three skin layers: epidermis, dermis, and subcutaneous. The epidermis is the outermost layer of the skin, providing a protective barrier against the environment. The dermis is the middle layer, containing blood vessels, hair follicles, and sweat glands. The subcutaneous layer, also known as the hypodermis, is the innermost layer and consists of fat and connective tissue. These three layers work together to support and protect the body's tissues and organs.

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  • 6. 

    The outermost cells are ____ and ____.

    • A.

      New;water repellent

    • B.

      New;not water repellent

    • C.

      Dead;water repellent

    • D.

      Dead;not water repellent

    Correct Answer
    C. Dead;water repellent
    Explanation
    The outermost cells are described as "dead" and "water repellent". This suggests that these cells are no longer alive and are designed to repel water.

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  • 7. 

    What chemical does the epidermis produce?

    • A.

      Skin

    • B.

      Ultra-violet Rays

    • C.

      Vitamin D

    • D.

      Melanin

    Correct Answer
    D. Melanin
    Explanation
    Melanin is the correct answer because it is the pigment responsible for the color of the skin, hair, and eyes. It is produced by cells in the epidermis called melanocytes. Melanin helps protect the skin from the harmful effects of ultraviolet (UV) radiation by absorbing and scattering the UV rays. It also plays a role in determining the skin's response to sun exposure, as it can darken in response to increased UV radiation to provide additional protection. Additionally, melanin is responsible for giving color to other parts of the body, such as the iris of the eyes and the hair.

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  • 8. 

    _____ is a pigment that protects skin and gives it color. Its production is increased by UV rays.

    Correct Answer
    Melanin
    Explanation
    Melanin is a pigment that protects the skin from harmful UV rays and gives it color. When the skin is exposed to UV rays, the production of melanin is increased as a protective response. Melanin absorbs the UV radiation and helps to prevent damage to the DNA in skin cells. The more melanin produced, the darker the skin becomes, providing a natural defense against the harmful effects of the sun.

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  • 9. 

    Different skin colors are the results of different amounts of melanin produced.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Melanin is a pigment that determines the color of our skin, hair, and eyes. It is produced by specialized cells called melanocytes. The more melanin produced, the darker the skin color. Therefore, it is true that different skin colors are the result of different amounts of melanin produced.

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  • 10. 

    Which of the following are found in the dermis?

    • A.

      Hair

    • B.

      Blood Vessels

    • C.

      Nerves

    • D.

      Bones

    • E.

      Muscles

    • F.

      Sweat Glands

    • G.

      Oil

    Correct Answer(s)
    B. Blood Vessels
    C. Nerves
    E. Muscles
    F. Sweat Glands
    G. Oil
    Explanation
    The dermis is the middle layer of the skin, located between the epidermis and the subcutaneous tissue. It contains various structures and components that help support and nourish the skin. Blood vessels are found in the dermis and are responsible for supplying oxygen and nutrients to the skin cells. Nerves are also present in the dermis and are responsible for transmitting sensory information, such as touch and pain, to the brain. Muscles are found in the dermis and are responsible for controlling the movement of hair follicles and blood vessels. Sweat glands are also located in the dermis and are responsible for producing sweat. Finally, oil glands, or sebaceous glands, are found in the dermis and are responsible for producing sebum, which helps moisturize and protect the skin.

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  • 11. 

    Which of the following are true about the Subcutaneous Layer

    • A.

      Fatty

    • B.

      Directly below the epidermis

    • C.

      Lowest Layer

    • D.

      Releases heat from the skin

    • E.

      Fat is deposited into the skin when a person gains weight

    Correct Answer(s)
    A. Fatty
    C. Lowest Layer
    E. Fat is deposited into the skin when a person gains weight
    Explanation
    The Subcutaneous Layer is the lowest layer of the skin and is composed of fatty tissue. It acts as an insulator and helps regulate body temperature by releasing heat from the skin. When a person gains weight, fat is deposited into this layer of the skin.

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