Anatomy And Physiology - Qp2

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| By Jackson Matthews
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Jackson Matthews
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This quiz, titled 'Anatomy and Physiology - QP2', explores the structure and function of the skin, including its layers, vascular supply, and role in temperature regulation and vitamin D production.

Anatomy And Physiology - Qp2 - Quiz

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  • 2. 

    Different layers are distinguished in the epidermis of the skin which varies in thickness from place to place:- (Select Two)

    • Stratum basale.

    • Stratum spinosum.

    • Albuminous substance.

    Correct Answer(s)
    A. Stratum basale.
    A. Stratum spinosum.
    Explanation
    The correct answer is Stratum basale and Stratum spinosum. The epidermis of the skin is composed of several layers, and two of these layers are the Stratum basale and Stratum spinosum. The Stratum basale is the innermost layer of the epidermis and is responsible for the production of new skin cells. The Stratum spinosum is located above the Stratum basale and is involved in the synthesis of keratin, a protein that provides strength and protection to the skin. These two layers play important roles in maintaining the structure and function of the skin.

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  • 3. 

    The Dermis contains:- (Select Three)

    • Sweat glands.

    • Nerve fibres.

    • Capillaries.

    • Vitamin D formation.

    Correct Answer(s)
    A. Sweat glands.
    A. Nerve fibres.
    A. Capillaries.
    Explanation
    The dermis is the middle layer of the skin, located beneath the epidermis. It contains sweat glands, which are responsible for producing sweat and regulating body temperature. Nerve fibers are also present in the dermis, allowing for sensation and communication between the skin and the brain. Capillaries, tiny blood vessels, are found in the dermis and provide oxygen and nutrients to the skin cells. Vitamin D formation, on the other hand, occurs in the epidermis when the skin is exposed to sunlight.

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  • 4. 

    The skin contains numerous nerve endings which convey sensations of touch, temperature, pressure and pain to the brain and thus helps protect the body. 

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The skin is the largest organ in the body and is responsible for protecting the body from external threats. It contains many nerve endings that transmit sensory information to the brain, allowing us to feel touch, temperature, pressure, and pain. These sensations help us respond to our environment and avoid potential harm. Therefore, the statement that the skin contains numerous nerve endings that convey sensations to the brain and help protect the body is true.

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  • 5. 

    Skin is vitally important in the production of vitamin D, and  plays a vital role in the regulation of our body temperature, as:- (Select Three)

    • It is a protective covering.

    • It excretes waste products.

    • It is an important sensory organ.

    • Becomes thicker when exposed to wear and tear

    Correct Answer(s)
    A. It is a protective covering.
    A. It excretes waste products.
    A. It is an important sensory organ.
    Explanation
    The skin serves as a protective covering for our body, shielding it from external factors such as harmful UV rays, bacteria, and physical injuries. It also excretes waste products through sweat, which helps in regulating body temperature and removing toxins. Additionally, the skin is an important sensory organ that allows us to perceive touch, pressure, temperature, and pain.

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  • 6. 

    The Dermis is attached to the epidermis by projections from the dermis called papillae, and is the inner layer which consists of fibrous and connective tissue.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The explanation for the given correct answer is that the dermis is indeed attached to the epidermis by projections called papillae. The dermis is the inner layer of the skin and is composed of fibrous and connective tissue. This attachment between the dermis and epidermis is important for the structural integrity and function of the skin.

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  • 7. 

    The main part of the sweat gland is situated in the epidermis.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement is false because the main part of the sweat gland is actually situated in the dermis, not the epidermis. The sweat gland consists of a coiled tube that extends from the dermis into the epidermis, where it opens onto the skin's surface. However, the majority of the sweat gland is located in the dermis, where it produces sweat before it is transported to the epidermis.

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  • 8. 

    Capillaries extend into the dermal ridges or papillae but DO NOT enter the epidermis.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Capillaries are tiny blood vessels that are responsible for delivering oxygen and nutrients to tissues and removing waste products. In the skin, capillaries extend into the dermal ridges or papillae, which are structures that help create fingerprints. However, they do not enter the epidermis, which is the outermost layer of the skin. This is because the epidermis is avascular, meaning it does not have its own blood supply. Therefore, the statement that capillaries extend into the dermal ridges or papillae but do not enter the epidermis is true.

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  • 9. 

     Underneath the superficial fascia lies the deep fascia, and these tissues are closely related to the skin and play an important role in the mobility of the skin over the underlying structures.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The explanation for the given correct answer is that the deep fascia is indeed closely related to the skin and plays a crucial role in the mobility of the skin over the underlying structures. This relationship allows for movement and flexibility of the skin, which is important for various bodily functions and activities. Therefore, the statement is true.

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  • Current Version
  • Aug 27, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 26, 2013
    Quiz Created by
    Jackson Matthews
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