Skin Structure And Functions Test 1

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  • 1/21 Questions

    The medical branch of science that deals with the stud of skin, is nature, structure, functions, dieseases, and treatment is

    • Dermatology
    • Cosmetology
    • Ethiology
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About This Quiz

This test, titled 'Skin Structure and Functions Test 1', assesses knowledge on dermatology and skin anatomy. It covers the study of skin, its layers, functions, and the role of vitamins and melanocytes in skin health. Ideal for learners interested in dermatology or medical studies.

Dermatology Quizzes & Trivia

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  • 2. 

    Our _ have the thinnest skin; and _ have the thickest skin

    • Eyelids, soles of our feet

    • Heads, and palms of our hands

    • Back and thighs

    Correct Answer
    A. Eyelids, soles of our feet
    Explanation
    The correct answer is eyelids, soles of our feet. This is because the skin on our eyelids is very thin and delicate, allowing us to see and blink easily. On the other hand, the skin on the soles of our feet is much thicker and tougher, providing protection and support for walking and standing.

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  • 3. 

    Is the outermost layer of the skin

    • Epidermis

    • Dermis

    • Papilary layer

    Correct Answer
    A. Epidermis
    Explanation
    The correct answer is epidermis because it is the outermost layer of the skin. The epidermis acts as a protective barrier against the external environment and helps regulate water loss from the body. It is composed of multiple layers of cells and does not contain blood vessels. The dermis is the layer beneath the epidermis and contains blood vessels, nerves, and hair follicles. The papillary layer is a specific region within the dermis that helps anchor the epidermis to the underlying layers.

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  • 4. 

    Nerve endings are most abundant in the

    • Fingertips

    • Toes

    • Head

    Correct Answer
    A. Fingertips
    Explanation
    Nerve endings are most abundant in the fingertips because the fingertips are highly sensitive areas of the body. They have a high concentration of touch receptors, known as mechanoreceptors, which allow us to perceive fine touch, pressure, and texture. This is why we are able to feel and distinguish objects with great precision using our fingertips. The toes and head also have nerve endings, but the fingertips have a higher density of them, making them the most sensitive areas.

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  • 5. 

    The principal functions of the skin are

    • Sensation, secreation, heat regulation, excreation, absorbtion, protection

    • Sensory, secretary, heating, excreation, absorbtion, protection

    • Sensory, secretation, heat regulation, excreation, abstinence, providing

    Correct Answer
    A. Sensation, secreation, heat regulation, excreation, absorbtion, protection
    Explanation
    The correct answer is "sensation, secretion, heat regulation, excretion, absorption, protection". The skin serves as a sensory organ, allowing us to feel touch, pressure, pain, and temperature. It also secretes sweat and oil to help moisturize and protect the skin. The skin plays a vital role in regulating body temperature through sweating and blood flow. It eliminates waste products through the process of excretion. The skin can absorb certain substances, such as medications or UV rays. Lastly, the skin acts as a barrier, protecting the body from external factors like pathogens, UV radiation, and physical injuries.

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  • 6. 

    React to heat, cold, touch, presure and pain

    • Sensory nerve fibers

    • Secretary nerve fibers

    • Sensation fibers

    Correct Answer
    A. Sensory nerve fibers
    Explanation
    Sensory nerve fibers are responsible for transmitting signals from sensory receptors to the central nervous system. These fibers allow us to react to various stimuli such as heat, cold, touch, pressure, and pain. They play a crucial role in our ability to perceive and respond to our environment.

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  • 7. 

    Play an important role in the skins health

    • Minerals

    • Lotions

    • Vitamins

    Correct Answer
    A. Vitamins
    Explanation
    Vitamins play an important role in the skin's health because they provide essential nutrients that are necessary for maintaining the skin's overall health and appearance. Certain vitamins, such as vitamin C and vitamin E, are known for their antioxidant properties, which help protect the skin from damage caused by free radicals and environmental factors. Other vitamins, like vitamin A, are important for cell turnover and collagen production, which are essential for maintaining youthful and healthy skin. Therefore, incorporating vitamins into one's skincare routine or diet can help improve the health and appearance of the skin.

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  • 8. 

    Is the fatty layer below the dermis

    • Subecutaneous

    • Epidermis

    • Fat

    Correct Answer
    A. Subecutaneous
    Explanation
    The correct answer is subcutaneous. The subcutaneous layer is the fatty layer located beneath the dermis. It is composed of adipose tissue, which helps to insulate the body and provide cushioning and protection for underlying structures. This layer also plays a role in regulating body temperature and storing energy.

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  • 9. 

    As we age gravity causes fibers to weaken resulting in some degree of

    • Shrinking

    • Wrinkling

    • Elastisity loss, skin sagging

    Correct Answer
    A. Elastisity loss, skin sagging
    Explanation
    As we age, the fibers in our skin weaken due to the effects of gravity. This leads to a loss of elasticity and causes the skin to sag. This is a natural process that occurs over time and is commonly observed in older individuals. The loss of elasticity and sagging of the skin are common signs of aging.

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  • 10. 

    Or granular layer consisit of cells that look like distinct granules

    • Stratum corneum

    • Germantinium

    • Stratum granulosum

    Correct Answer
    A. Stratum granulosum
    Explanation
    The correct answer is stratum granulosum because it is the layer of the epidermis that consists of cells that appear as distinct granules. The stratum granulosum is located between the stratum spinosum and the stratum corneum. It plays a crucial role in the formation of the skin barrier and the production of keratin, which helps to protect the skin from external factors such as bacteria and moisture loss.

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  • 11. 

    Produce dark skin pigment called melanin

    • Melanotosis

    • Melanocytes

    • Melanin cells

    Correct Answer
    A. Melanocytes
    Explanation
    Melanocytes are responsible for producing the dark skin pigment called melanin. Melanin is what gives color to the skin, hair, and eyes. These specialized cells are found in the skin's epidermis and are responsible for the production, storage, and distribution of melanin. When exposed to sunlight, melanocytes produce more melanin to protect the skin from harmful UV radiation. This is why people with more melanocytes tend to have darker skin tones.

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  • 12. 

    Outer layer of the dermis directly beneath the epidermis

    • Middle dermis

    • Fatty layer

    • Papillary layer

    Correct Answer
    A. Papillary layer
    Explanation
    The papillary layer is the correct answer because it is the outer layer of the dermis that is located directly beneath the epidermis. It is composed of loose connective tissue and contains papillae, which are small projections that help anchor the epidermis to the dermis. The papillary layer also contains blood vessels, nerve endings, and sensory receptors, making it important for the sensation of touch.

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  • 13. 

    Oil glands

    • Subcutaneous glands

    • Subaceous glands

    • Subatious glands

    Correct Answer
    A. Subaceous glands
    Explanation
    The correct answer is "subaceous glands". These glands are also known as oil glands, which are located in the dermis layer of the skin. They are responsible for producing sebum, an oily substance that helps to lubricate and protect the skin and hair. Subaceous glands are most commonly found in areas of the body that have a high concentration of hair follicles, such as the face, scalp, and upper back.

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  • 14. 

    Underlying or inner layer of the skin it is also called the derma, corium, cutis, or true skin

    • Stratum corneum

    • Dermis

    • Cuticle layer

    Correct Answer
    A. Dermis
    Explanation
    The dermis is the underlying or inner layer of the skin, also known as the derma, corium, cutis, or true skin. It is responsible for providing strength and elasticity to the skin, as well as housing the blood vessels, nerve endings, hair follicles, and sweat glands. The dermis plays a crucial role in maintaining the overall health and function of the skin.

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  • 15. 

    Horny layer is the cuter ayer of the epidermis, also scale-like cells are that look like distinct

    • Stratum epidermium

    • Stratum granulosum

    • Stratium corneum

    Correct Answer
    A. Stratium corneum
    Explanation
    The horny layer, also known as the stratum corneum, is the outermost layer of the epidermis. It is composed of scale-like cells that are flattened and filled with keratin, a tough protein. These cells are dead and constantly shed, making way for new cells to rise to the surface. The stratum corneum acts as a protective barrier for the underlying layers of the skin, preventing water loss and protecting against external factors such as bacteria and UV radiation.

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  • 16. 

    Basal cell layer also referred to as _ is the deepest layer of the epidermis

    • Stratium germinatium

    • Stratum corneum

    • Dermis

    Correct Answer
    A. Stratium germinatium
    Explanation
    The correct answer is "stratium germinatium." The basal cell layer, also known as the stratum germinatium, is the deepest layer of the epidermis. This layer is responsible for the continuous production of new cells that migrate towards the surface of the skin. It plays a crucial role in skin regeneration and maintenance.

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  • 17. 

    Distributed to the sweat and oil glands of the skin

    • Motor nerve fibers

    • Sensory nerve fibers

    • Secretary nerve fibers

    Correct Answer
    A. Secretary nerve fibers
    Explanation
    Secretary nerve fibers are responsible for transmitting signals to the sweat and oil glands of the skin. These fibers control the secretion of sweat and oil, which helps regulate body temperature and moisturize the skin. Motor nerve fibers, on the other hand, control muscle movement, while sensory nerve fibers transmit sensory information from the skin to the brain. However, it is important to note that the term "secretary nerve fibers" is not commonly used in scientific or medical literature, and it may be a typographical error or a less commonly known term.

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  • 18. 

    Even mild dehydration will slow metabolism by as much as

    • 5%

    • 4%

    • 3%

    Correct Answer
    A. 3%
    Explanation
    Mild dehydration can cause a decrease in metabolism by as much as 3%. When the body is dehydrated, it tries to conserve energy by slowing down various processes, including metabolism. This can lead to a decrease in the number of calories burned by the body. Therefore, even a slight level of dehydration can have a noticeable impact on metabolism.

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  • 19. 

    The skin contains two types of duct glands that extract materials from the blood to form new substances

    • Sudoriferous, subatious

    • Subctaceous subatious

    • Extraction, secretious

    Correct Answer
    A. Sudoriferous, subatious
    Explanation
    The correct answer is "sudoriferous, sebaceous." Sudoriferous glands are sweat glands that extract materials from the blood to produce sweat, which helps regulate body temperature. Sebaceous glands are oil glands that also extract materials from the blood to produce sebum, which moisturizes the skin and hair.

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  • 20. 

    Are distributed to arrector pili muscles attached to the hair follicles

    • Muscle nerve fibers

    • Follicle fibers

    • Motor nerve fibers

    Correct Answer
    A. Motor nerve fibers
    Explanation
    Motor nerve fibers are responsible for transmitting signals from the central nervous system to the muscles, causing them to contract. In the context of the given statement, motor nerve fibers are distributed to arrector pili muscles attached to the hair follicles. This suggests that these motor nerve fibers play a role in controlling the contraction of the arrector pili muscles, which causes the hair to stand on end.

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  • 21. 

    Which excrete sweat glands from the skin, consists of a coiled base or

    • Excreation glands

    • Secretary coil

    • Sensory coil

    Correct Answer
    A. Secretary coil
    Explanation
    The correct answer is "secretary coil." This is because sweat glands in the skin have a coiled base that is responsible for secreting sweat. The term "secretary" refers to the function of these glands in secreting sweat, while "coil" describes their coiled structure. The other options, "excreation glands" and "sensory coil," do not accurately describe the structure or function of sweat glands.

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Quiz Review Timeline (Updated): Mar 22, 2023 +

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 05, 2015
    Quiz Created by
    N2beauty
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