Question 1

What factors affect the color of the skin?

Accepted Answer

Answer reason: Skin color is influenced by melanin in the epidermis, oxygenation of hemoglobin, and bilirubin levels causing jaundice; thus all listed factors affect skin color.

Question 2

Melanin responsible for skin colour is secreted in which layer of the skin?

Accepted Answer

Answer reason: Melanin is produced by melanocytes located in the stratum basale (stratum germinativum), hence the germinative layer.

Question 3

Which of the following is not a type of wound?

Accepted Answer

Answer reason: Puncture and laceration are standard traumatic wound types; an ulcer is a lesion from tissue breakdown rather than a traumatic wound type in basic classifications.

Question 4

Which protein is present in hair?

Accepted Answer

Answer reason: Hair shafts are composed primarily of hard alpha-keratin, a fibrous structural protein. Myosin is a muscle protein; tropocollagen is the collagen subunit; elastin forms elastic fibers.

Question 5

Insensible fluid loss occurs through which type of excretion?

Accepted Answer

Answer reason: Insensible losses are unmeasurable evaporative water losses that occur primarily via the skin (and lungs). Urine, wound drainage, and GI losses are measurable (sensible).

Question 6

The protein present in hair is?

Accepted Answer

Answer reason: Hair is primarily composed of alpha-keratin; the other listed proteins are not the main structural protein of hair.

Question 7

A nurse assesses a circular, red, scaly skin lesion with central clearing on a patient’s arm. Which condition is most likely?

Accepted Answer

Answer reason: Tinea corporis presents as a ring-shaped lesion with a well-defined, scaly border and central clearing—classic for dermatophyte fungal infection.

Question 8

The outer layer of the skin is called?

Accepted Answer

Answer reason: The skin has two primary layers: the epidermis on the surface and the dermis beneath it. The epidermis is the outer, avascular layer composed of keratinized stratified squamous epithelium that provides barrier protection. The dermis is a deeper connective tissue layer. Poliomyelitis and leprosy are diseases, not skin layers.

Question 9

Skin is an __?

Accepted Answer

Answer reason: The skin is a complex organ composed of multiple tissues—epithelial, connective, vascular, and nervous—organized into layers (epidermis, dermis, and subcutaneous). By definition, an organ consists of several tissues working together to perform functions such as barrier protection, thermoregulation, and sensation. It is not a single tissue or a single cell, so 'All' is incorrect.

Question 10

The outermost layer of the skin is called the?

Accepted Answer

Answer reason: The outermost layer of the skin is the epidermis, a keratinized stratified squamous epithelium that provides barrier protection. The dermis, also known as the corium, lies beneath the epidermis and contains connective tissue, vessels, and nerves. Adipose tissue is mainly in the subcutaneous layer (hypodermis) below the dermis. Therefore, the correct answer is epidermis.

Question 11

Eczema is a disease of?

Accepted Answer

Answer reason: Eczema, often referred to as atopic dermatitis, is an inflammatory disorder of the skin. It presents with pruritus, erythema, xerosis, and sometimes lichenification due to chronic scratching. The pathophysiology involves skin barrier dysfunction and immune dysregulation, confirming it as a disease of the integumentary system.

Question 12

Skin colour is due to?

Accepted Answer

Answer reason: Baseline skin color is primarily determined by melanin produced by melanocytes in the epidermis. The amount and type of melanin (eumelanin vs. pheomelanin) account for variations in pigmentation. Blood flow and certain hormones can transiently influence hue, but they do not determine the fundamental skin color the way melanin does.

Question 13

Acne is a disorder of?

Accepted Answer

Answer reason: Acne is a disorder of the pilosebaceous unit of the skin. It involves follicular hyperkeratinization, increased sebum production, colonization by Cutibacterium acnes, and inflammation. These processes occur in the skin’s hair follicles and sebaceous glands, not in internal organs like the heart, lungs, or liver.

Question 14

Largest organ of human body?

Accepted Answer

Answer reason: The skin is the largest organ of the human body by surface area (about 1.5–2 m²) and by weight, accounting for roughly 15% of body mass. It provides essential barrier protection, thermoregulation, sensation, and vitamin D synthesis. The liver is the largest internal organ, while the brain and spine are smaller by mass and surface area.

Question 15

Human skin is...?

Accepted Answer

Answer reason: Skin is composed of multiple tissue types (epidermis, dermis, and subcutaneous tissue) organized to perform specific functions such as protection, thermoregulation, and sensation—meeting the definition of an organ. It is not a single cell, and while it contains tissues, it functions as an integrated organ system component. Therefore, the best classification is an organ.

Question 16

What Determines the Color of the skin______?

Accepted Answer

Answer reason: Skin color is primarily determined by melanin, a pigment synthesized by melanocytes in the epidermis. The amount and type (eumelanin vs. pheomelanin) and distribution of melanin account for most variation in pigmentation. Blood flow can transiently affect skin hue (e.g., pallor, erythema) but is not the primary determinant, and water or generic 'cells' do not dictate baseline color.

Question 17

Skin colour is depending on _____?

Accepted Answer

Answer reason: Baseline skin color is determined primarily by melanin produced by melanocytes in the epidermis. Variations in amount and type of melanin (eumelanin vs pheomelanin) account for most differences in skin pigmentation. Hemoglobin and carotene influence hue transiently (e.g., redness, pallor), while temperature and hormones may modulate pigmentation but are not the main determinant.

Question 18

Skin colour is depending on______?

Accepted Answer

Answer reason: Skin color is primarily determined by melanin produced by melanocytes in the epidermis. The amount and type (eumelanin vs. pheomelanin) of melanin dictate baseline pigmentation. Hemoglobin and carotene can influence undertones or transient color, and hormones/temperature may modulate pigmentation, but melanin is the chief determinant.

Question 19

Leprosy is a disease of?

Accepted Answer

Answer reason: Leprosy (Hansen disease) is caused by Mycobacterium leprae and primarily affects the skin and peripheral nerves. Typical findings are hypopigmented or erythematous skin patches with sensory loss and thickened peripheral nerves. While systemic involvement can occur, the cardinal clinical manifestations are cutaneous and neural, not pulmonary, cardiac, or osseous.

Question 20

The loss of skin color in patches is called?

Accepted Answer

Answer reason: Vitiligo is characterized by well-demarcated depigmented macules and patches due to autoimmune destruction of melanocytes. Psoriasis presents with erythematous plaques and silvery scale, not loss of pigment. Eczema causes pruritic, inflamed, often exudative lesions, and rosacea involves facial flushing and papulopustules. Therefore, patchy loss of skin color best fits vitiligo.

Question 21

Skin is a ____________?

Accepted Answer

Answer reason: Skin is composed of multiple tissue types—epidermis, dermis, and subcutaneous layer—working together to perform integrated functions such as protection, thermoregulation, sensation, and barrier immunity. By definition, an organ consists of several tissues organized to carry out specific functions. Therefore, skin is an organ and is the largest organ of the body. It is not a single tissue, gland, or cell.

Question 22

What are the symptoms of 3rd degree burns?

Accepted Answer

Answer reason: Third-degree (full-thickness) burns destroy the entire epidermis and dermis, including nerve endings, so the area is typically insensate and not painful. The skin appears charred, leathery, or waxy and dry with eschar. In contrast, second-degree burns are painful with blisters, and superficial burns are red and painful.

Question 23

The outside layer of skin is called _____?

Accepted Answer

Answer reason: The epidermis is the outermost layer of the skin composed of keratinized stratified squamous epithelium, providing the primary barrier to environmental insults. The dermis lies beneath it and contains connective tissue, vessels, and nerves. The hypodermis (subcutaneous tissue) is deeper still. Larynx is unrelated to skin.

Question 24

Nails contain which type of protein?

Accepted Answer

Answer reason: Human nails are composed primarily of hard keratin, a fibrous structural protein produced by keratinocytes. Keratin provides strength and resilience to hair, nails, and the outer skin layer. Thrombin and fibrin are proteins involved in blood clotting, and myosin is a contractile protein in muscle, so they do not form nails.

Question 25

Vernix caseosa is?

Accepted Answer

Answer reason: Vernix caseosa is a white, cheese-like material that covers the skin of term newborns. It consists of desquamated fetal epithelial cells and sebaceous secretions, forming a lipid-rich biofilm. It protects the fetus from maceration in amniotic fluid and has antimicrobial properties. It is not simply a fat layer or milk residue.

Question 26

Which is the largest organ of human body?

Accepted Answer

Answer reason: The skin is the largest organ of the human body by surface area and overall mass. It provides a protective barrier, helps regulate body temperature, enables sensation, and participates in immune defense. The liver is the largest internal organ, but not the largest organ overall.

Question 27

Which organ helps in removing sweat?

Accepted Answer

Answer reason: Sweat is produced and excreted by eccrine (and apocrine) sweat glands located in the skin. These glands secrete sweat onto the skin surface through ducts, contributing to thermoregulation and minor excretion of water, sodium, and small amounts of urea. The kidneys primarily excrete urine, the lungs excrete carbon dioxide and water vapor, and the liver metabolizes/detoxifies substances rather than removing sweat.

Question 28

What is the name of the layer of skin that is on the surface of the human?

Accepted Answer

Answer reason: The epidermis is the outermost layer of the skin and forms the body’s surface barrier against water loss, pathogens, and environmental injury. The dermis lies beneath it and contains blood vessels, nerves, and connective tissue structures. The hypodermis (subcutaneous layer) is deeper still and is primarily composed of fat and connective tissue for insulation and cushioning.

Question 29

In which layer of the skin would you find the sebaceous glands?

Accepted Answer

Answer reason: Sebaceous glands are skin appendages typically associated with hair follicles and are located within the dermis (often the reticular dermis). Their ducts open into the hair follicle or directly onto the skin surface to secrete sebum. The epidermis is avascular and does not contain glands, while the hypodermis/subcutaneous tissue is mainly adipose and connective tissue rather than gland-bearing skin.

Question 30

What is the main protein found in nails..?

Accepted Answer

Answer reason: Nails are composed primarily of hard keratin, a tough structural protein produced by keratinocytes in the nail matrix. Elastin and collagen are connective tissue proteins that provide elasticity and tensile strength mainly in dermis and other tissues, not the nail plate. Fibrin is a clotting protein formed from fibrinogen during coagulation, unrelated to nail structure. Therefore, keratin is the main protein in nails.

Question 31

Which tissue is damage in a 1st Degree burn?

Accepted Answer

Answer reason: A first-degree (superficial) burn involves injury limited to the epidermis, the outermost layer of skin. It typically presents with erythema, pain, and dryness without blistering because the dermis is not significantly damaged. Dermal involvement characterizes deeper burns (partial-thickness or full-thickness). Tendon and bone involvement occurs only with very deep, severe full-thickness injuries.

Question 32

What pigment gives human skin, hair, and eyes their color?

Accepted Answer

Answer reason: Melanin is the primary pigment produced by melanocytes that determines the color of skin, hair, and the iris. Differences in melanin type and amount (eumelanin vs pheomelanin) account for variations in pigmentation among individuals. Carotene can contribute a yellow-orange hue to skin, and hemoglobin influences skin’s pink/red tones via blood flow, but neither is the main determinant of hair and eye color. Luciferin is associated with bioluminescence in some organisms, not human pigmentation.

Question 33

Which organ Can Function After Death ?

Accepted Answer

Answer reason: Among the listed options, skin cells can remain viable for a period after death and may still support limited cellular activity (e.g., survival/metabolic processes) for hours to days depending on conditions. In contrast, the brain rapidly loses function within minutes of cessation of oxygen delivery. Heart and lungs can sometimes be maintained for transplantation with artificial support, but they do not continue to function independently after death. Therefore, skin is the best answer.

Question 34

Largest organ in the body is?

Accepted Answer

Answer reason: The skin is the largest organ of the human body by surface area and overall mass. It forms the body’s primary protective barrier and contributes to thermoregulation, sensation, and fluid balance. While the liver is the largest internal organ, the question asks for the largest organ overall, making skin the best answer.

Question 35

What is the main protein found in nails?

Accepted Answer

Answer reason: Nails are composed primarily of hard keratin, a tough structural protein produced by keratinocytes in the nail matrix. Keratin provides rigidity and protection to the nail plate. Fibrin is involved in blood clotting, collagen and elastin are major connective-tissue proteins, and myosin is a muscle contractile protein, so they are not the main nail protein.

Question 36

____is the largest organ of body?

Accepted Answer

Answer reason: The skin is the largest organ of the human body by surface area and overall mass. It forms the primary protective barrier against pathogens, fluid loss, and environmental injury, and it contributes to thermoregulation and sensation. The heart, liver, and lungs are vital organs but are smaller than the skin when considering the body as a whole.

Question 37

Which protein is present in hairs?

Accepted Answer

Answer reason: Hair shafts are primarily composed of hard keratin, a fibrous structural protein produced by keratinocytes. Elastin is a connective tissue protein that provides elasticity to skin and vessels, not the main hair protein. Gliadin is a wheat storage protein (part of gluten), and albumin is a major plasma protein, neither of which forms hair structure.

Question 38

A first-degree burn affects the —?

Accepted Answer

Answer reason: A first-degree (superficial) burn involves only the epidermis, presenting with erythema, pain, and no blistering (e.g., mild sunburn). Second-degree (partial-thickness) burns extend into the dermis and commonly blister. Third-degree (full-thickness) burns destroy the epidermis and dermis and may extend deeper. Therefore, the best answer is epidermis only.

Question 39

The largest organ in the human body is ...?

Accepted Answer

Answer reason: The skin is the body’s largest organ when measured by total surface area and overall mass. It provides a protective barrier, participates in thermoregulation, sensation, and fluid balance. The liver is the largest internal organ, but not the largest organ overall. The brain and small intestine are substantial organs but are smaller than the skin in total size.

Question 40

Eczema is related to?

Accepted Answer

Answer reason: Eczema (most commonly atopic dermatitis) is an inflammatory condition of the skin characterized by pruritus, erythema, and scaling. It primarily affects the epidermal barrier and triggers immune-mediated skin inflammation. Therefore, it is directly related to the integumentary system rather than the eye, kidney, or brain.

Question 41

The largest organ of the human body is?

Accepted Answer

Answer reason: Skin is the largest organ of the human body when measured by surface area and overall mass. It forms the body’s primary protective barrier and contributes to thermoregulation, sensation, and prevention of fluid loss. The liver is the largest internal organ, but it is not larger than the skin overall.

Question 42

Which location has the highest density of sweat glands?

Accepted Answer

Answer reason: Eccrine sweat glands are most densely distributed on thick skin, especially the soles of the feet and the palms. While the forehead has many eccrine glands and the axilla has prominent apocrine glands, their densities are lower than on the soles. Therefore, among the choices provided, the feet (soles) have the highest density of sweat glands.

Question 43

Goosebumps are caused by?

Accepted Answer

Answer reason: Goosebumps (piloerection) occur when arrector pili muscles attached to hair follicles contract. This contraction pulls the hair follicle upright and puckers the surrounding skin, creating the characteristic bumps. The response is triggered by sympathetic stimulation, commonly from cold exposure or strong emotions. Sweat glands and cartilage do not produce this skin-surface effect, and while nerves initiate the response, the visible bumps are produced by the hair (arrector pili) muscles.

Question 44

Acne is a disorder of?

Accepted Answer

Answer reason: Acne vulgaris is a disorder of the pilosebaceous unit in the skin, involving follicular hyperkeratinization, increased sebum production, inflammation, and often Cutibacterium acnes overgrowth. These processes occur within hair follicles and sebaceous glands, which are structures of the integumentary system. The lungs and liver are not the primary organs involved, and “heat” is not an anatomical system.

Question 45

The largest organ of human body is?

Accepted Answer

Answer reason: Skin is the largest organ of the human body when measured by surface area and overall mass as a functional organ system. It forms the integumentary system and serves as the primary barrier to infection, prevents excessive fluid loss, and contributes to thermoregulation and sensation. The liver is the largest internal organ, but not the largest overall organ. Heart and lungs are vital but smaller in total size compared with the skin.

Question 46

What is the function of Langerhans cells in the skin?

Accepted Answer

Answer reason: Langerhans cells are epidermal dendritic antigen-presenting cells that capture antigens in the skin and migrate to lymph nodes to activate T lymphocytes. They are key mediators of cutaneous immune surveillance and are involved in contact hypersensitivity reactions. Melanin is produced by melanocytes, and keratin is produced primarily by keratinocytes; digestion is not a skin cell function.

Question 47

What layers of skin are sweat gland in?

Accepted Answer

Answer reason: Sweat (sudoriferous) glands are located primarily in the dermis, often in the deep dermis, with their ducts traveling up to open on the epidermal surface. This dermal location allows close association with blood vessels and nerves for thermoregulation and sympathetic control. While some secretory portions may extend toward the upper hypodermis in thick skin, the standard anatomical answer is the dermis.

Question 48

Which part of the skin contains sweat glands?

Accepted Answer

Answer reason: Sweat (eccrine and apocrine) glands are located primarily in the dermis, where their secretory coils sit among connective tissue, blood vessels, and nerves. Their ducts pass upward through the epidermis to open at the skin surface (pores). The epidermis/stratum corneum lack glands, and the hypodermis is mainly adipose and connective tissue beneath the dermis rather than the main gland location.

Question 49

Which is the outermost layer of the skin?

Accepted Answer

Answer reason: The epidermis is the outermost layer of the skin and serves as the primary protective barrier against pathogens, water loss, and environmental injury. The dermis lies beneath it and contains connective tissue, blood vessels, nerves, and skin appendages. The hypodermis (also called subcutaneous tissue) is deeper and is primarily adipose/connective tissue for insulation and cushioning. Therefore, the outermost layer is the epidermis.

Question 50

Inflammation of skin is known as?

Accepted Answer

Answer reason: The suffix “-itis” means inflammation, and “derm-” refers to skin. Therefore, inflammation of the skin is termed dermatitis. By comparison, gastritis is inflammation of the stomach, hepatitis is inflammation of the liver, and nephritis is inflammation of the kidney.

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What factors affect the color of the skin?

Melanin responsible for skin colour is secreted in which layer of the skin?

Which of the following is not a type of wound?

Which protein is present in hair?

Insensible fluid loss occurs through which type of excretion?

The protein present in hair is?

A nurse assesses a circular, red, scaly skin lesion with central clearing on a patient’s arm. Which condition is most likely?

The outer layer of the skin is called?

Skin is an __?

The outermost layer of the skin is called the?

Eczema is a disease of?

Skin colour is due to?

Acne is a disorder of?

Largest organ of human body?

Human skin is...?

What Determines the Color of the skin______?

Skin colour is depending on _____?

Skin colour is depending on______?

Leprosy is a disease of?

The loss of skin color in patches is called?

Skin is a ____________?

What are the symptoms of 3rd degree burns?

The outside layer of skin is called _____?

Nails contain which type of protein?

Vernix caseosa is?

Which is the largest organ of human body?

Which organ helps in removing sweat?

What is the name of the layer of skin that is on the surface of the human?

In which layer of the skin would you find the sebaceous glands?

What is the main protein found in nails..?

Which tissue is damage in a 1st Degree burn?

What pigment gives human skin, hair, and eyes their color?

Which organ Can Function After Death ?

Largest organ in the body is?

What is the main protein found in nails?

____is the largest organ of body?

Which protein is present in hairs?

A first-degree burn affects the —?

The largest organ in the human body is ...?

Eczema is related to?

The largest organ of the human body is?

Which location has the highest density of sweat glands?

Goosebumps are caused by?

Acne is a disorder of?

The largest organ of human body is?

What is the function of Langerhans cells in the skin?

What layers of skin are sweat gland in?

Which part of the skin contains sweat glands?

Which is the outermost layer of the skin?

Inflammation of skin is known as?

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