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  • 1/49 Questions

    The condition known as erythema, the skin takes on a(n) ________ color. 

    • Red
    • Blue
    • Orange
    • Yellow
    • Black
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About This Quiz

Being a person with adequate knowledge on anatomy they have to have had long study hours in preparation for their careers. The quiz below is designed to test how well you understood chapter five. Give it a try and see how high you score. All the best in your studies!

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  • 2. 

    ________ is a pigment found in vegetables that can make the skin appear orange or yellow

    • Carotene

    • Albino

    • Melanoma

    • Rickets

    Correct Answer
    A. Carotene
    Explanation
    Carotene is a pigment found in vegetables that can make the skin appear orange or yellow. This is because carotene is a precursor to vitamin A and is responsible for the vibrant colors in fruits and vegetables like carrots, sweet potatoes, and squash. When consumed in large amounts, carotene can accumulate in the skin, giving it a yellow or orange tint. It is a harmless condition known as carotenemia and is not related to any underlying health issues like albino, melanoma, or rickets.

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  • 3. 

    Hairs are produced within organs called ________.  

    • Hair roots

    • Hair follicles

    • Languno

    • Cyanosis

    Correct Answer
    A. Hair follicles
    Explanation
    Hairs are produced within organs called hair follicles. Hair follicles are small, tube-like structures within the skin that contain the hair root. The hair follicles are responsible for the growth and development of hair, and they also play a role in determining the texture and thickness of the hair.

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  • 4. 

    ________ are fine hairs (like "velvet") that lack pigment and cover much of the body surface

    • Rickets

    • Lanugo

    • Keloid

    • Blister

    Correct Answer
    A. Lanugo
    Explanation
    Lanugo refers to the fine, colorless hairs that cover a significant portion of the body surface. These hairs are similar to velvet in texture and are commonly found in newborn babies. Lanugo serves as insulation for the body and helps regulate body temperature. It is usually shed before or shortly after birth, but in some cases, it may persist in individuals with certain medical conditions.

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  • 5. 

    The substance called sebum is commonly known as ________.  

    • Sweat

    • Hair

    • Thick

    • Oil

    • Blister

    Correct Answer
    A. Oil
    Explanation
    Sebum is a substance produced by the sebaceous glands in the skin. It is responsible for moisturizing and protecting the skin and hair. Sebum is commonly referred to as oil because of its oily consistency. It helps to keep the skin and hair hydrated and acts as a natural lubricant.

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  • 6. 

    A deficiency disease that illustrates the effect of integumentary system function on the structure of the skeletal system is ________.

    • Rickets

    • Melanoma

    • Vitamin d defiecency

    Correct Answer
    A. Rickets
    Explanation
    Rickets is a deficiency disease that demonstrates the impact of integumentary system function on the structure of the skeletal system. The integumentary system plays a crucial role in producing vitamin D when the skin is exposed to sunlight. Vitamin D is essential for the absorption and regulation of calcium and phosphorus, which are necessary for proper bone development. In rickets, the lack of vitamin D leads to impaired calcium and phosphorus absorption, resulting in weakened and deformed bones. This highlights the interconnectedness between the integumentary and skeletal systems in maintaining skeletal health.

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  • 7. 

    A thickened area of scar tissue that is covered by a shiny, smooth epidermal surface is called a(n) ________.  

    • Blister

    • Scar

    • Keloid

    • Tissue cell

    Correct Answer
    A. Keloid
    Explanation
    A keloid is a thickened area of scar tissue that extends beyond the boundaries of the original wound. It is covered by a shiny, smooth epidermal surface. Unlike normal scars, keloids can be raised, firm, and sometimes itchy or painful. They are caused by an overgrowth of collagen during the healing process and can occur after any type of injury to the skin, including surgery, burns, acne, or even minor scratches.

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  • 8. 

    A fibrin clot that is formed over a skin wound is called a(n) ________.  

    • Keloid

    • Scab

    • Tissue cells

    • Scar

    Correct Answer
    A. Scab
    Explanation
    A scab is formed over a skin wound as a protective layer. It is composed of dried blood, plasma, and other substances that help to prevent infection and promote healing. The scab acts as a barrier, preventing further damage to the wound and allowing the underlying tissue to regenerate. Once the wound is fully healed, the scab will naturally fall off or can be gently removed.

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  • 9. 

    The combination of fibrin clot, fibroblasts, and extensive capillary network that is formed in injured skin is called ________.  

    • Scar cell

    • Scar tissue

    • Granulation tissue

    • Keloid tissue

    Correct Answer
    A. Granulation tissue
    Explanation
    Granulation tissue is the correct answer because it refers to the combination of fibrin clot, fibroblasts, and extensive capillary network that forms in injured skin. This tissue is formed during the healing process and serves as a foundation for the formation of new skin cells. It is characterized by its granular appearance and plays a crucial role in wound healing by promoting tissue repair and regeneration. Scar tissue, scar cell, and keloid tissue are incorrect answers as they do not accurately describe this specific combination of components formed in injured skin.

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  • 10. 

    Rapid water loss from burned skin is an extreme form of ________ perspiration.  

    • Water

    • Dehyrdation

    • Sensiable

    • Insensiable

    Correct Answer
    A. Insensiable
    Explanation
    The correct answer is "insensiable." Insensible perspiration refers to the loss of water through the skin that is not noticeable or felt by an individual. In the case of burned skin, the water loss is rapid and extreme, but the person may not be aware of it due to the damage to the nerve endings in the burned area. Therefore, the term "insensible" accurately describes this type of perspiration.

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  • 11. 

    The skin appearance that results from dark-red hemoglobin is called ________.  

    • Brusing

    • Albino

    • Cyanosis

    • Maligment malanoma

    Correct Answer
    A. Cyanosis
    Explanation
    Cyanosis is the correct answer because it refers to the skin appearance that results from dark-red hemoglobin. It is characterized by a bluish discoloration of the skin and mucous membranes, indicating a lack of oxygen in the blood. This condition can be caused by various factors such as heart or lung diseases, and it is important to seek medical attention if cyanosis is observed.

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  • 12. 

    ________ are accumulations of fluid within the epidermis or between the epidermis and the dermis

    • Fluid build up

    • Melanoma

    • Deyhydration

    • Blisters

    Correct Answer
    A. Blisters
    Explanation
    Blisters are accumulations of fluid within the epidermis or between the epidermis and the dermis. They are typically caused by friction, burns, or other types of trauma to the skin. The fluid build-up within blisters serves as a protective cushion for the underlying tissues, aiding in the healing process.

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  • 13. 

    A bacterial infection that is often fatal in burn patients is called ________.  

    • Melanoma

    • Sepsis

    • Blisters

    • Scarring sepsis

    Correct Answer
    A. Sepsis
    Explanation
    Sepsis is a bacterial infection that can be life-threatening, particularly in burn patients. It occurs when bacteria enter the bloodstream and spread throughout the body, causing a systemic inflammatory response. Burn patients are at a higher risk of developing sepsis due to their compromised immune systems and the open wounds from their burns, which provide an entry point for bacteria. If left untreated, sepsis can lead to organ failure and death. Therefore, sepsis is the correct answer for the given question.

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  • 14. 

    The most dangerous type of skin cancer is termed ________.  

    • First degree

    • Malignant melanoma

    • Synopisis

    • Sun burn

    Correct Answer
    A. Malignant melanoma
    Explanation
    Malignant melanoma is the most dangerous type of skin cancer. It is characterized by the uncontrolled growth of pigment-producing cells called melanocytes. If left untreated, it can spread to other parts of the body and become life-threatening. Regular skin checks, protection from UV radiation, and early detection are crucial in preventing and managing malignant melanoma.

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  • 15. 

    Provide one beneficial effect of exposure to ultraviolet (UV) radiation.  

    • Vitmain D

    • Nice tan

    • Strong bones

    • Healthy skin

    Correct Answer
    A. Vitmain D
    Explanation
    Exposure to ultraviolet (UV) radiation can lead to the production of vitamin D in the body. Vitamin D is essential for maintaining healthy bones and teeth, as it helps the body absorb calcium and phosphorus. It also plays a role in supporting the immune system and regulating cell growth. Therefore, exposure to UV radiation can have the beneficial effect of promoting the production of vitamin D, which is important for overall health and well-being.

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  • 16. 

    A bruise turns "black and blue" because of ________ in the dermis.  

    • Heat

    • Scarring

    • Water

    • Blood

    • Bone

    Correct Answer
    A. Blood
    Explanation
    A bruise turns "black and blue" because of blood in the dermis. When an injury occurs, blood vessels in the dermis can rupture, causing blood to leak into the surrounding tissues. The blood contains red blood cells, which initially appear red. However, as the blood breaks down and is metabolized by the body, it turns darker and takes on a bluish or blackish color. This discoloration is what gives a bruise its characteristic appearance.

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  • 17. 

    Melanin is produced by melanocytes within the stratum ________.  

    • Germinatavium

    • Structure

    • Platlet

    • Plasma

    • Skin

    Correct Answer
    A. Germinatavium
  • 18. 

    Each of the following is a function of the integumentary system, except   

    • Excretion of salts and wastes

    • Provision of sensation.

    • Synthesis of vitamin C.

    • Maintenance of body temperature.

    • Protection of underlying tissue.

    Correct Answer
    A. Synthesis of vitamin C.
    Explanation
    The integumentary system is responsible for protecting the underlying tissues of the body, maintaining body temperature, and providing sensation. It also plays a role in excreting salts and wastes. However, the synthesis of vitamin C is not a function of the integumentary system.

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  • 19. 

    The two components of the integumentary system are the  

    • Epidermis and dermis

    • Epidermis and superficial fascia.

    • Integument and hypodermis.

    • Cutaneous membrane and hypodermis.

    • Cutaneous membrane and accessory structures

    Correct Answer
    A. Cutaneous membrane and accessory structures
    Explanation
    The correct answer is "cutaneous membrane and accessory structures." The integumentary system consists of the cutaneous membrane, which includes the epidermis and dermis, as well as the accessory structures such as hair, nails, and glands. The cutaneous membrane is the outermost layer of the skin, providing protection and acting as a barrier against pathogens and other harmful substances. The accessory structures play various roles, such as regulating body temperature, producing sweat and oil, and providing sensory information. Together, these components make up the integumentary system.

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  • 20. 

    Accessory structures of the skin include all of the following, except   

    • Nails.

    • Sebaceous glands.

    • Epidermis.

    • Hair follicles.

    • Sweat glands.

    Correct Answer
    A. Epidermis.
    Explanation
    The epidermis is not considered an accessory structure of the skin because it is actually the outermost layer of the skin itself. The accessory structures of the skin are additional components that are associated with the skin, such as nails, sebaceous glands, hair follicles, and sweat glands. These structures serve various functions, such as protecting the skin, producing oils and sweat, and aiding in sensory perception.

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  • 21. 

    The tough "horny" superficial layer of the epidermis is known as the

    • Stratum granulosum.

    • Stratum corneum.

    • Stratum spinosum.

    • Stratum lucidum.

    • Stratum germinativum

    Correct Answer
    A. Stratum corneum.
    Explanation
    The correct answer is stratum corneum. The stratum corneum is the tough, horny outermost layer of the epidermis. It is composed of dead skin cells called corneocytes that are tightly packed together and filled with keratin. This layer provides protection against external factors such as UV radiation, chemicals, and pathogens. It also helps to retain moisture in the skin and prevent excessive water loss.

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  • 22. 

    Water loss due to evaporation of fluid that has penetrated through the skin is termed ________ perspiration.  

    • Latent

    • Sensible

    • Inactive

    • Insensible

    • Active

    Correct Answer
    A. Insensible
    Explanation
    Insensible perspiration refers to the water loss that occurs through the skin due to evaporation of fluid. This term is used to describe the water loss that is not noticeable or perceptible, as it happens without our awareness.

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  • 23. 

    The layer of the epidermis that contains abundant desmosomes is the  

    • Stratum granulosum.

    • Stratum corneum.

    • Stratum spinosum

    • Stratum lucidum

    • Stratum germinativum.

    Correct Answer
    A. Stratum spinosum
    Explanation
    The stratum spinosum is the correct answer because it is the layer of the epidermis that contains abundant desmosomes. Desmosomes are cell junctions that provide strong adhesion between cells, and they are particularly abundant in the stratum spinosum. These desmosomes help to hold the cells together tightly, giving the epidermis its strength and integrity.

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  • 24. 

    An albino individual lacks the ability to produce  

    • Perspiration.

    • Keratin

    • Eleidin.

    • Melanin.

    • Carotene.

    Correct Answer
    A. Melanin.
    Explanation
    An albino individual lacks the ability to produce melanin. Melanin is a pigment that gives color to the skin, hair, and eyes. It also protects the skin from the harmful effects of the sun's ultraviolet (UV) rays. In albinism, there is a genetic mutation that affects the production of melanin, resulting in little to no pigmentation in the skin, hair, and eyes. This lack of melanin production can lead to various vision problems and increased sensitivity to sunlight.

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  • 25. 

    Which of the following is not an effect of ultraviolet radiation

    • Wrinkles

    • Vitiligo

    • Production of cholecalciferol within epidermal cells

    • Increased activity by melanocytes

    • Chromosomal damage in germinative cells or melanocytes

    Correct Answer
    A. Vitiligo
    Explanation
    Vitiligo is a skin condition characterized by the loss of pigment in certain areas of the skin, resulting in white patches. It is not caused by ultraviolet radiation, but rather by an autoimmune response where the body's immune system mistakenly attacks and destroys the melanocytes, the cells responsible for producing melanin. Ultraviolet radiation, on the other hand, can cause wrinkles, increase the activity of melanocytes, and potentially cause chromosomal damage in certain cells. Additionally, ultraviolet radiation can stimulate the production of cholecalciferol, a precursor to vitamin D, within epidermal cells. Therefore, vitiligo is not an effect of ultraviolet radiation.

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  • 26. 

    The layer of hard keratin that coats the hair is termed the  

    • Hair bulb.

    • Shaft.

    • Cuticle.

    • Root.

    • Medulla.

    Correct Answer
    A. Cuticle.
    Explanation
    The correct answer is "cuticle." The cuticle is the outermost layer of the hair shaft, made up of hard keratin. It acts as a protective barrier for the inner layers of the hair and helps to prevent damage and moisture loss. The hair bulb refers to the base of the hair follicle where the hair root is formed. The hair shaft is the visible part of the hair above the skin surface. The root is the part of the hair that is embedded in the hair follicle. The medulla is the innermost layer of the hair shaft, which is not always present in all hair types.

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  • 27. 

    Variations in hair color reflect differences in the pigment produced by  

    • Melanocytes.

    • Keratinocytes.

    • Dermal papillae

    • Soft keratin.

    • Carotene cells.

    Correct Answer
    A. Melanocytes.
    Explanation
    Melanocytes are responsible for producing the pigment that gives color to hair. Variations in hair color occur due to differences in the amount and type of pigment produced by melanocytes. Keratinocytes are the cells that make up the majority of the hair shaft and do not produce pigment. Dermal papillae are responsible for nourishing the hair follicles and do not directly contribute to hair color. Soft keratin refers to the type of protein that makes up the hair shaft and does not produce pigment. Carotene cells are not involved in hair color production.

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  • 28. 

    Glands that discharge an oily secretion into hair follicles are ________ glands.  

    • Apocrine sweat

    • Ceruminous

    • Mammary

    • sebaceous

    • Merocrine sweat

    Correct Answer
    A. sebaceous
    Explanation
    Sebaceous glands are the glands that discharge an oily secretion into hair follicles. These glands are responsible for producing sebum, which helps lubricate the hair and skin. Sebum also helps to protect the skin from drying out and acts as a barrier against bacteria and other pathogens.

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  • 29. 

    The ________ glands in the axilla become active at the time of puberty

    • Ceruminous

    • Merocrine sweat

    • Apocrine sweat

    • Axillary

    • Sebaceous

    Correct Answer
    A. Apocrine sweat
    Explanation
    During puberty, the apocrine sweat glands in the axilla become active. These glands are responsible for producing a thicker and odorless sweat compared to the merocrine sweat glands found throughout the body. The apocrine sweat glands are stimulated by hormonal changes during puberty, leading to increased sweat production in the axilla. This is why individuals may experience body odor during this stage of development.

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  • 30. 

    A child who skins his knee in a fall has a(n)

    • Puncture.

    • Incision.

    • Contusion

    • Abrasion

    • Laceration.

    Correct Answer
    A. Abrasion
    Explanation
    An abrasion is a type of injury that occurs when the top layer of skin is scraped or rubbed off. It is commonly referred to as a "skinned knee" and is often caused by falling or sliding on a rough surface. This explanation aligns with the given correct answer.

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  • 31. 

    The layer of the skin that provides a barrier against bacteria as well as chemical and mechanical injuries is the  

    • Sebum layer

    • Dermis.

    • Epidermis.

    • Stratum corneum

    • Subcutaneous layer.

    Correct Answer
    A. Epidermis.
    Explanation
    The epidermis is the outermost layer of the skin and serves as a protective barrier against bacteria, chemicals, and mechanical injuries. It is composed of several layers of cells that continuously regenerate and shed. The sebum layer is not a specific layer of the skin, but rather refers to the oily substance produced by the sebaceous glands within the dermis. The dermis is the layer of skin beneath the epidermis and contains blood vessels, nerves, and connective tissue. The stratum corneum is the outermost layer of the epidermis and consists of dead skin cells. The subcutaneous layer is the deepest layer of the skin and is primarily composed of fat cells.

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  • 32. 

    If a fair-skinned person is sunburned, why does his or her skin turn red

    • Melanocytes increase production of red pigments

    • The number of red melanocytes in the skin increases

    • The blood flow to the skin increases

    • Increased heat causes the skin to turn red

    • The blood supply to the skin decreases.

    Correct Answer
    A. The blood flow to the skin increases
    Explanation
    When a fair-skinned person is sunburned, their skin turns red because the blood flow to the skin increases. Sunburn is a result of excessive exposure to ultraviolet (UV) radiation, which causes damage to the skin cells. In response to this damage, the body increases blood flow to the affected area as a part of the inflammatory response. This increased blood flow brings more oxygen and nutrients to the damaged skin cells, but it also causes the skin to appear red and inflamed.

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  • 33. 

    Of the following are true of the subcutaneous layer, except it

    • Contains many blood vessels

    • Permits independent movement of deeper structures

    • Is attached to the dermis by a basement membrane

    • Is well supplied with nerves that pass into the skin

    • Contains large amounts of adipose tissue.

    Explanation
    The subcutaneous layer is not attached to the dermis by a basement membrane.

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  • 34. 

    Each of the following statements concerning sebaceous glands and sebum is true, except one. Identify the exception

    • Sebum can function as an antibiotic

    • Most sebaceous glands open into hair follicles

    • Most sebaceous glands are coiled tubular glands

    • Sebum functions to lubricate the hair and skin

    • Acne involves inflammation of sebaceous glands

    Correct Answer
    A. Most sebaceous glands are coiled tubular glands
    Explanation
    The exception is "Most sebaceous glands are coiled tubular glands".

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  • 35. 

    The following are stages in the regeneration of skin following an injury 1.blood clot/scab formation 2.cellular migration 3.epidermis covers granulation tissue 4.epidermis covers scar tissue

    • ) 2, 4, 1, 3.

    • 1, 2, 3, 4.

    • 3, 4, 1, 2

    • 4, 3, 2, 1.

    • 4, 3, 1, 2.

    Correct Answer
    A. 1, 2, 3, 4.
    Explanation
    The correct order of stages in the regeneration of skin following an injury is 1. blood clot/scab formation, 2. cellular migration, 3. epidermis covers granulation tissue, and 4. epidermis covers scar tissue. Initially, a blood clot or scab forms to stop bleeding and protect the wound. Then, cells migrate to the wound site to begin the healing process. Next, the epidermis, the outer layer of skin, covers the granulation tissue, which is the new tissue formed during healing. Finally, the epidermis covers the scar tissue, completing the regeneration process.

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  • 36. 

    The primary pigments contained in the epidermis are

    • Xanthophyll and melanin

    • Carotene and xanthophyll

    • Carotene and melanin

    • Melanin and chlorophyll

    • None of the above

    Correct Answer
    A. Carotene and melanin
    Explanation
    The correct answer is carotene and melanin. Carotene is a pigment that gives fruits and vegetables their orange color and is also found in the epidermis of the skin. Melanin is the primary pigment responsible for the color of human skin, hair, and eyes. Both carotene and melanin contribute to the overall coloration of the epidermis.

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  • 37. 

    Thin skin contains ________ layer(s) of keratinocytes, and thick skin contains ________ layers.

    • 1; 2

    • 2; 3

    • 3; 4

    • 4; 5

    • 5; 6

    Correct Answer
    A. 4; 5
    Explanation
    Thin skin contains 4 layers of keratinocytes, while thick skin contains 5 layers.

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  • 38. 

    Cyanosis signifies that a patient

    • Has been exposed to cyanide

    • Has been kept out of the sun.

    • Has had too much sun

    • Has oxygen-starved skin

    • Has an allergic reaction.

    Correct Answer
    A. Has oxygen-starved skin
    Explanation
    Cyanosis is a condition characterized by a bluish discoloration of the skin, nails, and mucous membranes due to insufficient oxygen in the blood. This can occur when there is a decrease in oxygen levels or poor circulation in the body. Therefore, cyanosis signifies that a patient has oxygen-starved skin.

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  • 39. 

    Jaundice is indicated by

    • A yellowish skin coloration.

    • A brown skin coloration.

    • An orange skin coloration.

    • A bluish skin coloration.

    Correct Answer
    A. A yellowish skin coloration.
    Explanation
    Jaundice is a medical condition characterized by the yellowing of the skin and eyes due to an excess of bilirubin in the blood. Bilirubin is a yellow pigment that is produced when red blood cells break down. When the liver is unable to properly process and excrete bilirubin, it builds up in the body and causes the skin to appear yellowish. Therefore, a yellowish skin coloration is a clear indication of jaundice.

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  • 40. 

    While assessing a patient, you discover that after pinching the skin on the back of the hand, it remains peaked. This is a sign of

    • Hydration intoxication

    • Water intoxication.

    • Malfunctioning elastin.

    • Dehydration.

    • Advanced skin cancer

    Correct Answer
    A. Dehydration.
    Explanation
    When the skin remains peaked after being pinched, it indicates dehydration. Normally, the skin should immediately return to its normal position after being released. However, in cases of dehydration, the skin loses its elasticity and takes longer to return to its original shape. This is because dehydration leads to a decrease in the body's water content, causing the skin to become dry and lose its ability to bounce back quickly. Therefore, the fact that the skin remains peaked after pinching suggests that the patient is dehydrated.

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  • 41. 

    A surgical incision parallel to the lines of cleavage

    • Heals slower than incisions made perpendicular to the lines of cleavage

    • Closes and heals with relatively little scarring

    • Requires no sutures

    • Does not affect the healing process

    • Has a tendency to reopen

    Correct Answer
    A. Closes and heals with relatively little scarring
    Explanation
    A surgical incision made parallel to the lines of cleavage closes and heals with relatively little scarring because it aligns with the natural tension lines of the skin. The lines of cleavage are the natural orientation of collagen fibers in the dermis, and incisions made parallel to these lines experience less tension and stress during the healing process. This allows for better wound closure and less disruption to the surrounding tissue, resulting in a smoother healing process with minimal scarring.

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  • 42. 

    Treatment of full-thickness burns includes which of the following

    • Replace fluids

    • ) prevent infection

    • Assist tissue repair

    • Increase caloric intake

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The treatment of full-thickness burns includes replacing fluids to prevent dehydration, preventing infection by cleaning and dressing the wound, assisting tissue repair through various methods such as debridement or skin grafting, and increasing caloric intake to support the body's healing process. Therefore, all of the options mentioned are correct and necessary for the treatment of full-thickness burns.

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  • 43. 

    Which of the following statements about rickets is not true

    • Is usually genetic

    • Prevented by sunlight

    • Leads to weak bones

    • Leads to skeletal deformity

    • Prevented by vitamin D

    Correct Answer
    A. Is usually genetic
    Explanation
    Rickets is a condition characterized by weak and brittle bones, as well as skeletal deformities. It is primarily caused by a deficiency in vitamin D, which is essential for the absorption of calcium and phosphorus in the body. While genetics can play a role in the development of rickets, it is not usually a genetic condition. Therefore, the statement "is usually genetic" is not true.

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  • 44. 

    ________ sweat glands are widely distributed across the body surface, ________ glands are located wherever hair follicles exist, and ________

    • Merocrine; sebaceous; apocrine

    • Apocrine; sebaceous; merocrine

    • Merocrine; apocrine; sebaceous

    • Apocrine; merocrine; sebaceous

    • Sebaceous; merocrine; apocrine

    Correct Answer
    A. Merocrine; sebaceous; apocrine
    Explanation
    Merocrine sweat glands are widely distributed across the body surface, sebaceous glands are located wherever hair follicles exist, and apocrine glands are found in specific areas such as the armpits and groin.

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  • 45. 

    From what structure does sensible perspiration occur

    • Hair shaft 6

    • Sepacious gland 7

    • Arrector pili muscle 8

    • Nerve fibers 9

    • Sweat glands 10

    Correct Answer
    A. Sweat glands 10
    Explanation
    Sensible perspiration occurs from sweat glands. Sweat glands are responsible for producing sweat, which is then released through the pores of the skin. This process helps regulate body temperature and eliminate waste products from the body. The other options, such as the hair shaft, sebaceous gland, arrector pili muscle, and nerve fibers, are not directly involved in the production or release of sweat.

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  • 46. 

    An intradermal injection is administered into which layer

    • 1. epidermis

    • 2. papiliarry layer

    • 3. reticular layer

    • 4. dermis

    • 5. hypodermis

    Correct Answer
    A. 3. reticular layer
    Explanation
    An intradermal injection is administered into the reticular layer. The reticular layer is the deepest layer of the dermis, located below the papillary layer. It is composed of dense connective tissue and contains blood vessels, nerves, and sweat glands. Intradermal injections are given just below the epidermis, within the reticular layer, to administer small amounts of medication or to perform skin tests, such as allergy testing or tuberculosis screening. This layer provides a good blood supply and allows for absorption of the injected medication.

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  • 47. 

    Which layer is the primary barrier against environmental hazards

    • 1. epidermis

    • 2. papiliarry layer

    • 3. reticular layer

    • 4. dermis

    • 5. hypodermis

    Correct Answer
    A. 1. epidermis
    Explanation
    The epidermis is the outermost layer of the skin and serves as the primary barrier against environmental hazards. It acts as a protective shield, preventing harmful substances, such as chemicals and pathogens, from entering the body. The epidermis also helps regulate the loss of water and protects against UV radiation. Additionally, it contains specialized cells, such as melanocytes, which produce melanin, the pigment responsible for skin color and protection against harmful UV rays. Overall, the epidermis plays a crucial role in maintaining the integrity and health of the skin.

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  • 48. 

    Which tissue is located in the region labeled "2

    • Cartilage and blood

    • Areolar connective tissue

    • Stratified squamous epithelium

    • Reticular connective tissues

    • Adipose tissue

    Correct Answer
    A. Areolar connective tissue
    Explanation
    The correct answer is areolar connective tissue. Areolar connective tissue is a loose connective tissue that is found in various regions of the body, including under the skin, around blood vessels, and between organs. It is characterized by its loose arrangement of collagen and elastic fibers, as well as its abundance of cells, such as fibroblasts and immune cells. Areolar connective tissue provides support and flexibility to surrounding structures, as well as playing a role in immune defense and inflammation.

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  • 49. 

    Which layer contains most of the epidermal derivatives

    • 2. papilary layer

    • 4. dermis

    • 3. reticular layer

    • 1. epidermis

    • 5. hypodermis

    Correct Answer
    A. 3. reticular layer
    Explanation
    The reticular layer contains most of the epidermal derivatives. The epidermal derivatives include hair follicles, sweat glands, sebaceous glands, and nails. These structures are embedded within the reticular layer of the dermis, which is the second layer of the skin. The papillary layer, on the other hand, is the uppermost layer of the dermis and is responsible for providing nutrients to the epidermis. The epidermis itself is the outermost layer of the skin, while the hypodermis is the deepest layer and primarily consists of fat cells.

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  • Current Version
  • Aug 07, 2024
    Quiz Edited by
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  • Jul 27, 2009
    Quiz Created by
    Caitlinnorthcutt

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