Hair And Accessory Structures Of The Skin

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Quizzes Created: 12 | Total Attempts: 23,390
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  • 1/26 Questions

    What are the muscles that extend from the dermis and attach to the hair follicle called ___________.  These muscles make the shaft become erect, which has the effect of causing goose bumps.

    • Plexus
    • Arrector pili
    • Savaceous gland
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Structure Quizzes & Trivia
About This Quiz

Explore the structure and function of hair including its cellular composition, layers, and growth aspects through detailed questions.

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  • 2. 

    Skin glands.   What are the glands called that secrete milk in a female

    • Ceruminous glands

    • Mammary glands

    • Sudoriferous glands

    Correct Answer
    A. Mammary glands
    Explanation
    Mammary glands are the correct answer because they are the glands that secrete milk in a female. These glands are unique to mammals and are responsible for producing and delivering milk to nourish their offspring. The mammary glands undergo development and enlargement during pregnancy and lactation, and they play a crucial role in the reproductive and nurturing functions of female mammals.

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  • 3. 

    What is the portion of the nail called that is visible

    • Nail matrix

    • Nail body

    • Nail root

    Correct Answer
    A. Nail body
    Explanation
    The portion of the nail that is visible is called the nail body. It is the part of the nail that extends beyond the fingertip and is often painted or manicured. The nail body is made up of keratin, a protein that gives it strength and durability. It is important to keep the nail body clean and well-maintained to promote overall nail health.

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  • 4. 

    What is the crescent shaped area at the proximal part of the nail called

    • Body

    • Lunula

    • Matrix

    • Munula

    Correct Answer
    A. Lunula
    Explanation
    The crescent-shaped area at the proximal part of the nail is called the lunula. It is a whitish, half-moon-shaped area that is visible on the nail. The lunula is actually the visible part of the nail matrix, which is responsible for nail growth. The matrix is located beneath the proximal nail fold and produces the cells that form the nail plate. The lunula appears lighter in color because it is the thickest part of the nail plate and less translucent.

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  • 5. 

    Nails are made of

    • Calcium cells

    • Melanin cells

    • Keratinised cells

    Correct Answer
    A. Keratinised cells
    Explanation
    Nails are made of keratinized cells. Keratin is a tough protein that forms the structure of nails, hair, and skin. These cells are produced in the nail matrix, which is located at the base of the nail. As the cells are pushed forward, they harden and become keratinized, forming the nail plate. This explains why nails are strong and durable. Calcium cells and melanin cells are not involved in the formation of nails.

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  • 6. 

    Hair is found on most skin surfaces except

    • Back

    • Soles and plantar surface of feet

    • Palms

    • Both a & b

    • Both b & c

    Correct Answer
    A. Both b & c
    Explanation
    Hair is found on most skin surfaces except on the back, soles, and plantar surface of the feet, as well as on the palms. Therefore, the correct answer is "Both b & c" because both the soles and plantar surface of the feet and the palms are areas where hair is not found.

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  • 7. 

    What do sebaceous glands secrete

    • Mixture of fats

    • Water

    • Bacteria

    Correct Answer
    A. Mixture of fats
    Explanation
    Sebaceous glands are responsible for secreting a mixture of fats called sebum. Sebum helps to lubricate and waterproof the skin, preventing it from drying out. It also helps to protect the skin from environmental factors and maintain its elasticity. The secretion of sebum is important for maintaining healthy skin and hair.

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  • 8. 

    The superficial portion of the hair is called the

    • Root

    • Shaft

    • Follicle

    • Bulb

    Correct Answer
    A. Shaft
    Explanation
    The correct answer is Shaft. The question is asking about the superficial portion of the hair, and the shaft refers to the visible part of the hair that extends above the surface of the skin. The root is the part of the hair that is embedded within the hair follicle, while the follicle is the structure in the skin from which the hair grows. The bulb is the rounded, bottom part of the hair follicle where the hair is formed. Therefore, the shaft is the most appropriate answer as it specifically refers to the visible portion of the hair.

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  • 9. 

    What is the hair root plexus

    • Muscles

    • Glands

    • Nerve endings

    Correct Answer
    A. Nerve endings
    Explanation
    The hair root plexus refers to a network of nerve endings that surround the base of the hair follicle. These nerve endings are responsible for transmitting sensory information to the brain, such as detecting touch, temperature, and pain. They play a crucial role in the sensation and perception of the hair and its surrounding area.

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  • 10. 

     Which one of these is the inner most layer

    • Medulla

    • Cortex

    • Cuticle

    Correct Answer
    A. Medulla
    Explanation
    The medulla is the innermost layer of a structure, such as the hair or the adrenal gland. In the context of the given options, the medulla would be the innermost layer of something.

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  • 11. 

    The colour of hair is due to the amount and type of ___________

    • Keratin

    • Melanin

    • Both of these

    • None of these

    Correct Answer
    A. Melanin
    Explanation
    The correct answer is Melanin. Melanin is the pigment responsible for the color of hair. It is produced by specialized cells called melanocytes, which are located in the hair follicles. The amount and type of melanin present in the hair determine its color, whether it be black, brown, blonde, or red. Keratin, on the other hand, is a protein that makes up the structure of hair, but it does not contribute to its color. Therefore, the correct answer is Melanin.

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  • 12. 

    At the inferior base of the bulb is the ____________ of the hair which contains blood vessels that nourish growing hair.

    • Medulla

    • Cortex

    • Papilla

    • Follicle

    Correct Answer
    A. Papilla
    Explanation
    The correct answer is papilla because the papilla is located at the inferior base of the hair bulb and contains blood vessels that provide nourishment to the growing hair. The medulla refers to the innermost layer of the hair shaft, the cortex is the middle layer, and the follicle is the structure that surrounds and supports the hair.

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  • 13. 

    What part of the nail is responsible for the growth of the nail

    • Nail root

    • Nail Matrix

    • Nail body

    Correct Answer
    A. Nail Matrix
    Explanation
    The nail matrix is responsible for the growth of the nail. It is located at the base of the nail, just below the cuticle. The matrix contains specialized cells that divide and produce new cells, which then harden and form the nail plate. These new cells push older cells forward, causing the nail to grow. Therefore, the nail matrix plays a crucial role in the continuous growth and renewal of the nail.

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  • 14. 

    Which glands are found in the inner ear

    • Ceruminous glands

    • Sudoriferous glands

    • Sebaceous glands

    Correct Answer
    A. Ceruminous glands
    Explanation
    Ceruminous glands are found in the inner ear. These glands are responsible for producing cerumen, also known as earwax. Cerumen helps to protect the ear canal by trapping dust, debris, and bacteria, preventing them from reaching the delicate structures of the inner ear. This wax also helps to lubricate the ear canal, preventing dryness and irritation. Sudoriferous glands, on the other hand, are sweat glands found throughout the body, while sebaceous glands are oil glands found in the skin.

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  • 15. 

    What are the three concentric layers that make up the shaft and root of the hair

    • Follicle, bulb, medulla

    • Medulla, cortex, cuticle

    • Cuticle, follicle, cortex

    • Medulla, follicle, cuticle

    Correct Answer
    A. Medulla, cortex, cuticle
    Explanation
    The correct answer is medulla, cortex, cuticle. The medulla is the innermost layer of the hair shaft, followed by the cortex which is the middle layer, and finally the cuticle which is the outermost layer. The medulla provides support and structure to the hair, while the cortex contains the pigment that gives hair its color and strength. The cuticle acts as a protective layer, sealing the hair and preventing damage.

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  • 16. 

    Which glands are sweat glands

    • Sebaceous glands

    • Sudoriferous glands

    • Ceruminous glands

    • Mammary glands

    Correct Answer
    A. Sudoriferous glands
    Explanation
    Sudoriferous glands are the sweat glands in the human body. They are responsible for producing and secreting sweat, which helps regulate body temperature. These glands are found all over the body and are particularly abundant in areas such as the armpits, palms, and soles of the feet. Sweat produced by sudoriferous glands contains water, salts, and other substances that help cool down the body through evaporation. Therefore, sudoriferous glands are the correct answer to the question.

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  • 17. 

    The Matrix of the hair - a ferminal layer of cells contained in the hair bulb arises from which layer of the epidermis

    • Stratum basale

    • Stratum spinosum

    • Stratum granulosum

    • Stratum lucidum

    Correct Answer
    A. Stratum basale
    Explanation
    The matrix of the hair, which is a layer of cells contained in the hair bulb, arises from the stratum basale layer of the epidermis. The stratum basale is the deepest layer of the epidermis and is responsible for the continuous production of new cells. This layer contains the stem cells that give rise to the matrix cells of the hair bulb, which in turn produce the hair shaft. Therefore, the correct answer is stratum basale.

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  • 18. 

    What is the hair called on a foetus

    • Vellus hairs

    • Lanugo

    • Terminal

    Correct Answer
    A. Lanugo
    Explanation
    Lanugo refers to the fine, soft hair that covers the body of a developing foetus. It is usually shed before birth, but its presence is a normal part of fetal development. This hair helps to regulate the temperature of the foetus and protect its delicate skin. Vellus hairs, on the other hand, are the fine, short hairs that cover most of the body in children and adults. Terminal hairs are the thicker, longer, and darker hairs that grow in areas such as the scalp, eyebrows, and pubic region.

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  • 19. 

    Which type of sudoriferous glands only function at puberty

    • Eccrine Sweat glands

    • Apocrine Sweat glands

    • Both

    • Neither

    Correct Answer
    A. Apocrine Sweat glands
    Explanation
    Apocrine sweat glands are the type of sudoriferous glands that only function at puberty. These glands are found in specific areas of the body, such as the armpits and groin, and they become active during puberty under the influence of hormones. Unlike eccrine sweat glands, which are active throughout life and help regulate body temperature, apocrine sweat glands are responsible for producing a thicker and odorless secretion that is associated with body odor. Therefore, the correct answer is "Apocrine Sweat glands."

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  • 20. 

    What is Alopecia

    • Sudden hair growth

    • Sudden hair loss

    • Partial or complete lack of hair

    Correct Answer
    A. Partial or complete lack of hair
    Explanation
    Alopecia refers to a condition characterized by partial or complete lack of hair. It is a medical term used to describe hair loss that can occur on the scalp or other parts of the body. This condition can be caused by various factors such as genetics, autoimmune disorders, hormonal changes, and certain medical treatments. The term "sudden hair growth" is incorrect as alopecia is associated with hair loss rather than hair growth.

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  • 21. 

    What is the hair growth at puberty called.

    • Vellus hairs

    • Lanugo

    • Terminal

    Correct Answer
    A. Terminal
    Explanation
    During puberty, the body undergoes hormonal changes that stimulate the growth of thicker and darker hair in certain areas. This type of hair growth is referred to as "terminal" hair. Terminal hairs are more mature and fully developed compared to vellus hairs, which are fine, light-colored, and less noticeable. Lanugo, on the other hand, refers to the fine, downy hair that covers a fetus's body during gestation and is typically shed before birth. Therefore, the correct answer is "terminal."

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  • 22. 

    Hair is made up of _____________ & _______________ (mark all that apply)

    • Dead keratinised cells

    • Live keratinised cells

    • Extracellular proteins

    • Intracellular proteins

    Correct Answer(s)
    A. Dead keratinised cells
    A. Extracellular proteins
    Explanation
    Hair is composed of dead keratinized cells, which means that the cells have lost their nuclei and other organelles but are still made of keratin. Keratin is a tough protein that provides strength and structure to the hair. Additionally, hair also contains extracellular proteins, which are proteins that are located outside of the cells. These proteins help to support and protect the hair strands. Therefore, both dead keratinized cells and extracellular proteins are important components of hair.

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  • 23. 

    Each hair follicle goes through a growth cycle.  What cycle is described as "The hair is no longer growing and the follicle eventually shrinks to one sixth of its normal size"

    • Growth phase (anagen)

    • Transitional phrase (catagen)

    • Resting Phase (telogen)

    Correct Answer
    A. Transitional phrase (catagen)
    Explanation
    The correct answer is "Transitional phase (catagen)." During the catagen phase, the hair is no longer growing and the hair follicle begins to shrink in size. This phase marks the end of the active growth phase (anagen) and prepares the follicle for the resting phase (telogen), where the old hair is shed and a new hair begins to grow.

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  • 24. 

    During which growth phase do the cells of the matrix differentiate, Keratinize and die. 

    • Growth phase

    • Transitional Phase

    • Resting Phase

    Correct Answer
    A. Growth phase
    Explanation
    During the growth phase, the cells of the matrix differentiate, keratinize, and die. This is the phase where the cells undergo changes and mature into specialized cells, such as keratinocytes, which produce the protein keratin. As the cells continue to differentiate and produce keratin, they eventually die and are sloughed off, making way for new cells to take their place. This process is essential for the renewal and maintenance of the skin and its protective barrier.

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  • 25. 

    The cortex is made up of _____________ in grey or white hair

    • Grey pigment

    • Air

    • Light pigment

    • None of the above

    Correct Answer
    A. Air
    Explanation
    The cortex is the middle layer of the hair shaft and is responsible for the hair's strength and elasticity. It is composed of keratinized cells that contain air spaces, giving the cortex a spongy appearance. Therefore, the cortex is made up of air, not any of the other options mentioned in the question.

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  • 26. 

    Greying hair occures because of the progressive decline in the enzyme ____________

    • Melaninase

    • Tyrosinase

    • Colourase

    Correct Answer
    A. Tyrosinase
    Explanation
    Tyrosinase is the correct answer because greying hair occurs due to the progressive decline in the enzyme. Tyrosinase is responsible for the production of melanin, the pigment that gives hair its color. As the enzyme declines, there is a decrease in melanin production, resulting in the loss of hair color and the appearance of grey hair.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jun 08, 2009
    Quiz Created by
    Jmstyles

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