Ch. 5 Quiz- Integumentary System

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| By Ashley Reese
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Ashley Reese
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Quizzes Created: 2 | Total Attempts: 230
Questions: 23 | Attempts: 160

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Ch. 5 Quiz- Integumentary System - Quiz

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Questions and Answers
  • 1. 

    The components of the Integumentary System are: ________________________________________

    Explanation
    The integumentary system consists of the skin, hair, nails, sweat glands, and oil glands. These components work together to protect the body from external factors, regulate body temperature, and provide sensory information. The skin acts as a barrier against pathogens and harmful substances, while hair and nails provide additional protection. Sweat glands help regulate body temperature by producing sweat, and oil glands secrete oil to keep the skin moisturized. Together, these components form a complex system that plays a crucial role in maintaining the overall health and well-being of the body.

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  • 2. 

     The main functions of the Integumentary System are: ________________________________

    Explanation
    The main functions of the Integumentary System are protection, sensory function, thermoregulation, and vitamin D synthesis. The skin acts as a barrier, protecting the body from external factors such as pathogens, UV radiation, and dehydration. It also contains sensory receptors that allow us to perceive touch, pressure, pain, and temperature. The integumentary system plays a role in regulating body temperature by controlling sweat production and blood flow to the skin. Additionally, the skin is involved in the synthesis of vitamin D when exposed to sunlight, which is important for calcium absorption and bone health.

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  • 3. 

    What are the 3 layers of skin? (superficial to deep) ________________________

    Explanation
    The skin is composed of three layers: the epidermis, dermis, and hypodermis. The epidermis is the outermost layer of the skin and acts as a protective barrier. It is responsible for the production of new skin cells and contains melanocytes, which produce melanin that gives the skin its color. The dermis is the middle layer and contains blood vessels, nerves, hair follicles, and sweat glands. It provides support and nourishment to the skin. The hypodermis is the deepest layer and consists of fat cells that help insulate the body and provide cushioning.

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  • 4. 

    Name the layers of the epidermis (deep to superficial) in thick skin: ________________________________________

    Explanation
    The layers of the epidermis in thick skin, from deep to superficial, are the stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum.

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  • 5. 

    Stratum basale has a single layer of cells called: ________

    Explanation
    The correct answer is "basal cells". The stratum basale is the deepest layer of the epidermis and it consists of a single layer of cells known as basal cells. These cells are constantly dividing and producing new cells that migrate towards the surface of the skin, contributing to the renewal and regeneration of the epidermis. The basal cells also play a crucial role in the production of melanin, the pigment responsible for skin color.

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  • 6. 

    The nail body is composed of densely packed, dead: ________

    Explanation
    The nail body is composed of densely packed, dead keratinocytes. Keratinocytes are specialized cells that produce keratin, a tough and fibrous protein that forms the structural component of nails. These cells are found in the nail matrix, which is responsible for the growth and development of the nail. As the keratinocytes move towards the surface of the nail, they become compacted and eventually die, forming the hard and protective nail body.

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  • 7. 

    Composed of keratinized, stratified squamous epithelial cells:

    • A.

      Epidermis

    • B.

      Dermis

    • C.

      Hypodermis

    Correct Answer
    A. Epidermis
    Explanation
    The epidermis is composed of keratinized, stratified squamous epithelial cells. This means that the outermost layer of the skin, the epidermis, is made up of cells that have undergone a process called keratinization, where they have become tough and filled with a protein called keratin. These cells are arranged in multiple layers, with the outermost layer being composed of squamous epithelial cells. The dermis and hypodermis, on the other hand, are not primarily composed of keratinized, stratified squamous epithelial cells.

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  • 8. 

    Composed of blood, lymph vessels, nerves, hair follicles, and sweat glands:

    • A.

      Epidermis

    • B.

      Dermis

    • C.

      Hypodermis

    Correct Answer
    B. Dermis
    Explanation
    The dermis is the correct answer because it is the layer of skin that is composed of blood vessels, lymph vessels, nerves, hair follicles, and sweat glands. The dermis is located beneath the epidermis and provides support and nourishment to the skin. It also contains collagen and elastin fibers, which give the skin its strength and elasticity. The dermis plays a crucial role in regulating body temperature, sensing touch, and protecting the body from external factors.

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  • 9. 

    Composed of well-vascularized, loose, areolar connective tissue and adipose tissue:

    • A.

      Epidermis

    • B.

      Dermis

    • C.

      Hypodermis

    Correct Answer
    C. Hypodermis
    Explanation
    The hypodermis is composed of well-vascularized, loose, areolar connective tissue and adipose tissue. This layer is located beneath the dermis and serves as a support structure for the skin. The adipose tissue in the hypodermis acts as insulation and provides cushioning for the underlying structures. Additionally, the blood vessels in this layer supply nutrients and oxygen to the skin.

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  • 10. 

    Made up of 2 layers of connective tissue:

    • A.

      Epidermis

    • B.

      Dermis

    • C.

      Hypodermis

    Correct Answer
    B. Dermis
    Explanation
    The dermis is the correct answer because it is made up of two layers of connective tissue. The dermis is located beneath the epidermis and is responsible for providing strength and elasticity to the skin. It contains blood vessels, nerves, hair follicles, and sweat glands. The epidermis is the outermost layer of the skin, while the hypodermis is the deepest layer. However, the hypodermis is primarily composed of adipose tissue and serves as insulation and energy storage rather than connective tissue.

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  • 11. 

    Made up of 1 layer of connective tissue:

    • A.

      Epidermis

    • B.

      Dermis

    • C.

      Hypodermis

    Correct Answer
    C. Hypodermis
    Explanation
    The hypodermis is made up of 1 layer of connective tissue. It is the deepest layer of the skin and is located below the dermis. The hypodermis contains fat cells, blood vessels, and nerves. It provides insulation, cushioning, and energy storage for the body.

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  • 12. 

    Made up of 4-5 layers of epithelial cells:

    • A.

      Epidermis

    • B.

      Dermis

    • C.

      Hypodermis

    Correct Answer
    A. Epidermis
    Explanation
    The correct answer is the epidermis. The epidermis is the outermost layer of the skin and is made up of 4-5 layers of epithelial cells. It acts as a protective barrier against external factors such as bacteria, UV radiation, and chemicals. The epidermis also contains melanocytes, which produce melanin, the pigment responsible for skin color. Additionally, the epidermis plays a crucial role in regulating body temperature and preventing water loss from the body.

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  • 13. 

    Hair follicles originate in the:

    • A.

      Epidermis

    • B.

      Dermis

    • C.

      Hypodermis

    Correct Answer
    A. Epidermis
    Explanation
    Hair follicles originate in the epidermis. The epidermis is the outermost layer of the skin and contains specialized cells called keratinocytes that produce keratin, the protein that makes up hair. The hair follicle is a small pocket within the epidermis where the hair shaft grows from. It is responsible for producing and nourishing the hair strand. The dermis and hypodermis are deeper layers of the skin and do not play a direct role in the origin of hair follicles.

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  • 14. 

    Match the layer to its definition or function: Stratum spinosum

    • A.

      Has a grainy appearance due to further changes to the keratinocytes

    • B.

      Provides a barrier to water

    • C.

      Produces keratin- reproduces hair, skin, and nails, responsible for stimulating sensory nerves that the brain perceives as touch, produces melanin-gives hair and skin color, protects from UV radiation damage

    • D.

      Is spiny in appearance due to the protruding cell processes that join the cells via a structure called a desmosome

    • E.

      Helps prevent the penetration of microbes and the dehydration of underlying tissues, and provides a mechanical protection against abrasion for the more delicate, underlying layers

    • F.

      Made of loose, areolar connective tissue, which means the collagen and elastin fibers of this layer form a loose mesh

    • G.

      Composed of dense, irregular connective tissue, well vascularized and has a rich sensory and sympathetic nerve supply

    Correct Answer
    D. Is spiny in appearance due to the protruding cell processes that join the cells via a structure called a desmosome
    Explanation
    The Stratum spinosum is spiny in appearance due to the protruding cell processes that join the cells via a structure called a desmosome. This layer helps prevent the penetration of microbes and the dehydration of underlying tissues, and provides a mechanical protection against abrasion for the more delicate, underlying layers.

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  • 15. 

    Match the layer to its definition or function: Stratum Basale

    • A.

      Has a grainy appearance due to further changes to the keratinocytes

    • B.

      Provides a barrier to water

    • C.

      Produces keratin- reproduces hair, skin, and nails, responsible for stimulating sensory nerves that the brain perceives as touch, produces melanin-gives hair and skin color, protects from UV radiation damage

    • D.

      Is spiny in appearance due to the protruding cell processes that join the cells via a structure called a desmosome

    • E.

      Helps prevent the penetration of microbes and the dehydration of underlying tissues, and provides a mechanical protection against abrasion for the more delicate, underlying layers

    • F.

      Made of loose, areolar connective tissue, which means the collagen and elastin fibers of this layer form a loose mesh

    • G.

      Composed of dense, irregular connective tissue, well vascularized and has a rich sensory and sympathetic nerve supply

    Correct Answer
    C. Produces keratin- reproduces hair, skin, and nails, responsible for stimulating sensory nerves that the brain perceives as touch, produces melanin-gives hair and skin color, protects from UV radiation damage
    Explanation
    The correct answer is the stratum basale. This layer is responsible for producing keratin, which is essential for the reproduction of hair, skin, and nails. It also stimulates sensory nerves that are responsible for the sense of touch. Additionally, the stratum basale produces melanin, which gives hair and skin its color and helps protect against damage from UV radiation.

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  • 16. 

    Match the layer to its definition or function: Stratum Lucidum

    • A.

      Has a grainy appearance due to further changes to the keratinocytes

    • B.

      Provides a barrier to water

    • C.

      Produces keratin- reproduces hair, skin, and nails, responsible for stimulating sensory nerves that the brain perceives as touch, produces melanin-gives hair and skin color, protects from UV radiation damage

    • D.

      Is spiny in appearance due to the protruding cell processes that join the cells via a structure called a desmosome

    • E.

      Helps prevent the penetration of microbes and the dehydration of underlying tissues, and provides a mechanical protection against abrasion for the more delicate, underlying layers

    • F.

      Made of loose, areolar connective tissue, which means the collagen and elastin fibers of this layer form a loose mesh

    • G.

      Composed of dense, irregular connective tissue, well vascularized and has a rich sensory and sympathetic nerve supply

    Correct Answer
    B. Provides a barrier to water
    Explanation
    The layer that provides a barrier to water is the Stratum Lucidum. This layer helps prevent the penetration of water and dehydration of underlying tissues. It acts as a protective barrier against water loss and helps maintain the hydration of the skin.

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  • 17. 

    Match the layer to its definition or function: Stratum Granulosum

    • A.

      Has a grainy appearance due to further changes to the keratinocytes

    • B.

      Provides a barrier to water

    • C.

      Produces keratin- reproduces hair, skin, and nails, responsible for stimulating sensory nerves that the brain perceives as touch, produces melanin-gives hair and skin color, protects from UV radiation damage

    • D.

      Is spiny in appearance due to the protruding cell processes that join the cells via a structure called a desmosome

    • E.

      Helps prevent the penetration of microbes and the dehydration of underlying tissues, and provides a mechanical protection against abrasion for the more delicate, underlying layers

    • F.

      Made of loose, areolar connective tissue, which means the collagen and elastin fibers of this layer form a loose mesh

    • G.

      Composed of dense, irregular connective tissue, well vascularized and has a rich sensory and sympathetic nerve supply

    Correct Answer
    A. Has a grainy appearance due to further changes to the keratinocytes
    Explanation
    The stratum granulosum has a grainy appearance due to further changes to the keratinocytes. This layer of the epidermis is responsible for producing keratin, which is essential for the structure and strength of the skin. As the keratinocytes in this layer undergo further changes, they become more flattened and filled with keratin granules, giving the layer its grainy appearance. These changes are important for the development of a protective barrier on the skin's surface, preventing water loss and providing mechanical protection against abrasion.

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  • 18. 

    Match the layer to its definition or function: Stratum corneum

    • A.

      Has a grainy appearance due to further changes to the keratinocytes

    • B.

      Provides a barrier to water

    • C.

      Produces keratin- reproduces hair, skin, and nails, responsible for stimulating sensory nerves that the brain perceives as touch, produces melanin-gives hair and skin color, protects from UV radiation damage

    • D.

      Is spiny in appearance due to the protruding cell processes that join the cells via a structure called a desmosome

    • E.

      Helps prevent the penetration of microbes and the dehydration of underlying tissues, and provides a mechanical protection against abrasion for the more delicate, underlying layers

    • F.

      Made of loose, areolar connective tissue, which means the collagen and elastin fibers of this layer form a loose mesh

    • G.

      Composed of dense, irregular connective tissue, well vascularized and has a rich sensory and sympathetic nerve supply

    Correct Answer
    E. Helps prevent the penetration of microbes and the dehydration of underlying tissues, and provides a mechanical protection against abrasion for the more delicate, underlying layers
    Explanation
    The correct answer describes the function of the stratum corneum, which is the outermost layer of the epidermis. This layer helps prevent the penetration of microbes and the dehydration of underlying tissues by providing a barrier. It also provides a mechanical protection against abrasion for the more delicate layers underneath.

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  • 19. 

    Match the layer to its definition or function: Reticular layer

    • A.

      Has a grainy appearance due to further changes to the keratinocytes

    • B.

      Provides a barrier to water

    • C.

      Produces keratin- reproduces hair, skin, and nails, responsible for stimulating sensory nerves that the brain perceives as touch, produces melanin-gives hair and skin color, protects from UV radiation damage

    • D.

      Is spiny in appearance due to the protruding cell processes that join the cells via a structure called a desmosome

    • E.

      Helps prevent the penetration of microbes and the dehydration of underlying tissues, and provides a mechanical protection against abrasion for the more delicate, underlying layers

    • F.

      Made of loose, areolar connective tissue, which means the collagen and elastin fibers of this layer form a loose mesh

    • G.

      Composed of dense, irregular connective tissue, well vascularized and has a rich sensory and sympathetic nerve supply

    Correct Answer
    G. Composed of dense, irregular connective tissue, well vascularized and has a rich sensory and sympathetic nerve supply
    Explanation
    The reticular layer is composed of dense, irregular connective tissue, which gives it its strength and durability. It is well vascularized, meaning it has a rich blood supply, which helps to nourish the cells in this layer. Additionally, the reticular layer has a rich sensory and sympathetic nerve supply, which allows it to transmit sensory information and regulate various bodily functions.

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  • 20. 

    Match the layer to its definition or function: Papillary layer

    • A.

      Has a grainy appearance due to further changes to the keratinocytes

    • B.

      Provides a barrier to water

    • C.

      Produces keratin- reproduces hair, skin, and nails, responsible for stimulating sensory nerves that the brain perceives as touch, produces melanin-gives hair and skin color, protects from UV radiation damage

    • D.

      Is spiny in appearance due to the protruding cell processes that join the cells via a structure called a desmosome

    • E.

      Helps prevent the penetration of microbes and the dehydration of underlying tissues, and provides a mechanical protection against abrasion for the more delicate, underlying layers

    • F.

      Made of loose, areolar connective tissue, which means the collagen and elastin fibers of this layer form a loose mesh

    • G.

      Composed of dense, irregular connective tissue, well vascularized and has a rich sensory and sympathetic nerve supply

    Correct Answer
    F. Made of loose, areolar connective tissue, which means the collagen and elastin fibers of this layer form a loose mesh
    Explanation
    The papillary layer is made of loose, areolar connective tissue, which means the collagen and elastin fibers of this layer form a loose mesh. This loose mesh structure allows for flexibility and movement, and also provides support to the overlying layers of the skin. Additionally, the loose mesh allows for the diffusion of nutrients and waste products between the dermis and the epidermis. This layer also contains blood vessels and nerve endings, which are important for supplying nutrients and oxygen to the skin cells, as well as for sensory perception.

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  • 21. 

    BONUS: What are 3 basic elements the skin protects us from?

    Correct Answer
    wind, water, UV sunlight, water loss, grit, microbes, harmful chemicals
    Explanation
    The skin acts as a protective barrier against various external factors. Wind can cause dryness and irritation to the skin, while water can soften and weaken it. UV sunlight can damage the skin and lead to sunburn or skin cancer. Water loss can result in dehydration and dryness. Grit, such as dirt or sand, can cause abrasions and irritate the skin. Microbes, including bacteria and fungi, can cause infections. Harmful chemicals can penetrate the skin and cause damage or irritation. Overall, the skin protects us from wind, water, UV sunlight, water loss, grit, microbes, and harmful chemicals.

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  • 22. 

    BONUS: Name 3 receptors which allow us to feel:

    Correct Answer
    Meissener corpuscle, Pacinian corpuscle, Merkel cell
    Explanation
    The Meissner corpuscle, Pacinian corpuscle, and Merkel cell are three types of receptors that allow us to feel different sensations. The Meissner corpuscle is responsible for detecting light touch and low-frequency vibrations. The Pacinian corpuscle is sensitive to deep pressure and high-frequency vibrations. The Merkel cell, also known as a tactile disc, is involved in the perception of light touch and shapes. These receptors are located in the skin and play a crucial role in our ability to perceive and interpret various tactile sensations.

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  • 23. 

    BONUS: Homeostasis is represented best in what function of the Integumentary System?

    Correct Answer
    Thermoregulation
    Explanation
    Thermoregulation is the best representation of homeostasis in the Integumentary System because it helps maintain a stable internal body temperature. The skin plays a crucial role in regulating body temperature by controlling the amount of heat loss or retention through processes like sweating or shivering. This ensures that the body maintains an optimal temperature despite external environmental changes. Therefore, thermoregulation is a key function of the Integumentary System in maintaining homeostasis.

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  • Current Version
  • Feb 27, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 23, 2020
    Quiz Created by
    Ashley Reese
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