State Board Barbering Exam Review 2
Questions and Answers
- 1.
Flexibility is a sign of _ skin.
- A.
Alkaline
- B.
Oily
- C.
Healthy
- D.
Dry
Correct Answer
C. HealthyExplanation
Flexibility is a sign of healthy skin because healthy skin has good elasticity and is able to stretch and bounce back without tearing or becoming damaged. Dry skin, on the other hand, lacks moisture and can be tight and prone to cracking. Oily skin may have excess sebum production, which can lead to clogged pores and breakouts. Alkaline skin refers to a higher pH level, which can disrupt the natural balance of the skin and cause dryness or irritation. Therefore, out of the given options, healthy skin is the most likely to exhibit flexibility.Rate this question:
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- 2.
The skin of the _ is similar to the skin on the rest of the body except that it has larger and deeper hair follicles.
- A.
Scalp
- B.
Face
- C.
Hands
- D.
Neck
Correct Answer
A. ScalpExplanation
The scalp is the correct answer because it is the area of the body that has larger and deeper hair follicles compared to the rest of the body. The skin on the scalp is similar to the skin on the rest of the body, but the presence of these specialized hair follicles sets it apart.Rate this question:
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- 3.
The _ of the skin are oil and sweat glands, nails, and hair.
- A.
Non-living tissues
- B.
External parts
- C.
Extras
- D.
Appendages
Correct Answer
D. AppendagesExplanation
The term "appendages" refers to additional structures or organs that are attached to the body. In the context of the given question, the oil and sweat glands, nails, and hair are considered appendages of the skin. These structures are not part of the main body but are connected to it and serve specific functions related to the skin's health and protection.Rate this question:
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- 4.
The _ is the outermost layer of the skin.
- A.
Dermis
- B.
Epidermis
- C.
Exodermis
- D.
Hair
Correct Answer
B. EpidermisExplanation
The epidermis is the outermost layer of the skin. It acts as a protective barrier against external factors such as bacteria, UV radiation, and chemicals. The epidermis is composed of multiple layers of cells, including keratinocytes, which produce the protein keratin that gives the skin its strength and flexibility. It also contains melanocytes, which produce melanin, the pigment responsible for skin color. The epidermis plays a crucial role in regulating body temperature, preventing water loss, and providing sensory information through nerve endings.Rate this question:
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- 5.
The cells of the stratum corneum are made of __.
- A.
Epidermis
- B.
Dermis
- C.
Melanin
- D.
Keratin
Correct Answer
D. KeratinExplanation
The cells of the stratum corneum, the outermost layer of the epidermis, are made of keratin. Keratin is a tough, fibrous protein that provides strength and protection to the skin. It helps to form a barrier against environmental factors, such as moisture loss and harmful substances. Keratin also contributes to the overall structure and integrity of the skin.Rate this question:
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- 6.
The second layer of the epidermis is the _.
- A.
Stratum lucidum
- B.
Stratum germinativum
- C.
Stratum corneum
- D.
Stratum granulosum
Correct Answer
A. Stratum lucidumExplanation
The correct answer is stratum lucidum. The stratum lucidum is the second layer of the epidermis. It is a thin, translucent layer of cells that is found only in thick skin, such as the palms of the hands and the soles of the feet. The stratum lucidum is responsible for providing additional protection to the skin and helping to prevent water loss.Rate this question:
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- 7.
The protein in the stratum corneum that helps to keep it _ is keratin.
- A.
From being sunburned
- B.
Full of blood
- C.
Flexible
- D.
Waterproof
Correct Answer
D. WaterproofExplanation
The stratum corneum is the outermost layer of the skin, and its main function is to act as a barrier to protect the underlying layers. Keratin is a protein that is a major component of the stratum corneum, and it helps to make this layer waterproof. This means that it prevents water from entering or leaving the skin, helping to maintain hydration levels and protect against excessive moisture loss. Therefore, the correct answer is "waterproof".Rate this question:
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- 8.
Another name for the top layer of the epidermis is the _.
- A.
Stratum lucidum
- B.
Stratum germinativum
- C.
Granular layer
- D.
Horny layer
Correct Answer
D. Horny layerExplanation
The top layer of the epidermis is commonly referred to as the horny layer. This layer is composed of dead skin cells that have become flat and filled with keratin, a protein that provides strength and protection to the skin. The horny layer acts as a barrier against external factors such as bacteria, UV radiation, and water loss, helping to maintain the integrity of the skin.Rate this question:
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- 9.
The dark protective pigment in the _ layer of the skin is called melanin.
- A.
Basal
- B.
Dermal
- C.
Adipose
- D.
Tissue
Correct Answer
A. BasalExplanation
Melanin is the dark protective pigment found in the basal layer of the skin. The basal layer is the deepest layer of the epidermis, and it contains cells called melanocytes that produce melanin. Melanin helps protect the skin from the harmful effects of ultraviolet (UV) radiation from the sun by absorbing and scattering the UV rays. It also gives color to the skin, hair, and eyes.Rate this question:
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- 10.
The inner layer of the skin, known as the _, is a vascular layer of connective tissue.
- A.
Epidermis
- B.
Keratin
- C.
Dermis
- D.
Melanin
Correct Answer
C. DermisExplanation
The inner layer of the skin, known as the dermis, is a vascular layer of connective tissue. It is responsible for providing strength and elasticity to the skin. The dermis contains blood vessels, nerves, hair follicles, and sweat glands. It also houses collagen and elastin fibers, which give the skin its structure and flexibility. The dermis plays a crucial role in regulating body temperature and protecting the body from external factors such as UV radiation and pathogens.Rate this question:
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- 11.
The layer of the dermis that contains papillae and _ is the papillary layer.
- A.
Keratin
- B.
Nerve endings
- C.
Horny material
- D.
Lymph
Correct Answer
B. Nerve endingsExplanation
The papillary layer of the dermis contains papillae, which are small projections that increase the surface area for nutrients and oxygen exchange. Additionally, this layer also contains nerve endings, which are responsible for transmitting sensory information such as touch, temperature, and pain to the brain. Therefore, the correct answer is nerve endings.Rate this question:
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- 12.
The reticular layer of the _ supplies the skin with oxygen and nutrients.
- A.
Dermis
- B.
Epidermis
- C.
Stratum lucidum
- D.
Stratum germinativum
Correct Answer
A. DermisExplanation
The dermis is the correct answer because it is the layer of skin that contains blood vessels, which supply oxygen and nutrients to the skin. The reticular layer is the deeper layer of the dermis and is responsible for providing support and structure to the skin.Rate this question:
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- 13.
Subcutaneous tissue is the _ under the dermis.
- A.
Nerve endings
- B.
Hair follicles
- C.
Colored tissue
- D.
Layer of fatty tissue
Correct Answer
D. Layer of fatty tissueExplanation
The subcutaneous tissue is located under the dermis and is composed of a layer of fatty tissue. This layer acts as a cushioning and insulation for the body, providing protection and helping to regulate body temperature. It also contains blood vessels and nerves that supply nutrients and sensation to the skin.Rate this question:
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- 14.
One function of _ tissue is to act as a protective cushion for the outer skin.
- A.
Nerve
- B.
Dermis
- C.
Adipose
- D.
Papillary
Correct Answer
C. AdiposeExplanation
Adipose tissue is a type of connective tissue that stores fat cells. It is found beneath the dermis layer of the skin and acts as a protective cushion for the outer skin. Adipose tissue provides insulation, regulates body temperature, and protects the body against mechanical shocks and impacts. It also serves as an energy reserve by storing excess calories in the form of fat. Therefore, adipose tissue plays a crucial role in protecting the skin and maintaining its integrity.Rate this question:
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- 15.
Blood and lymph supply _ to skin.
- A.
Noursihment
- B.
UV protection
- C.
Color
- D.
Shape
Correct Answer
A. NoursihmentExplanation
Blood and lymph supply nourishment to the skin. The blood carries oxygen and nutrients to the skin cells, providing them with the necessary fuel for growth and repair. The lymphatic system helps to remove waste products and toxins from the skin. Both blood and lymph supply are essential for maintaining the health and vitality of the skin.Rate this question:
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- 16.
_ of the body's blood supply is distributed to the skin.
- A.
One-quarter
- B.
One-third to one-half
- C.
One-half to two-thirds
- D.
Two-thirds to seven-eights
Correct Answer
C. One-half to two-thirdsExplanation
One-half to two-thirds of the body's blood supply is distributed to the skin. This is because the skin plays a crucial role in regulating body temperature and maintaining homeostasis. Blood vessels in the skin help to dissipate excess heat through vasodilation, while constricting to conserve heat in colder conditions. This distribution of blood helps to regulate body temperature and ensure that vital organs receive a sufficient blood supply.Rate this question:
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- 17.
Motor nerve fibers are distributed to the arrector pili muscles attached to the hair follicles, which cause _.
- A.
Skin to appear flushed
- B.
Sensations
- C.
Goose bumps
- D.
Shivering
Correct Answer
C. Goose bumpsExplanation
Motor nerve fibers are distributed to the arrector pili muscles attached to the hair follicles, which cause goose bumps. When these muscles contract, they pull the hair follicles upright, causing the surrounding skin to form small bumps. This response is triggered by various stimuli, such as cold temperatures, fear, or emotional arousal. The purpose of goose bumps is believed to be an evolutionary response to make the individual appear larger or to provide insulation by trapping a layer of air close to the skin.Rate this question:
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- 18.
Sensory nerve fibers react to _.
- A.
Cold and heat
- B.
Pressure
- C.
Pain
- D.
All answers are correct
Correct Answer
B. PressureExplanation
Sensory nerve fibers react to pressure. This means that when pressure is applied to the body, these nerve fibers send signals to the brain to perceive the sensation of pressure. This is how we are able to feel objects pressing against our skin or the weight of something on our body. Cold and heat, as well as pain, are also stimuli that sensory nerve fibers can react to, but the question specifically asks for the correct answer, which is pressure.Rate this question:
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- 19.
The nerves that regulate the excretion of perspiration and the flow of _ are the secretory nerve fibers.
- A.
Sebum
- B.
Blood
- C.
Lymph
- D.
Nerve messages
Correct Answer
A. SebumExplanation
The correct answer is "sebum" because sebum is the substance that is secreted by the sebaceous glands in the skin. These glands are regulated by the secretory nerve fibers, which control the production and flow of sebum. Sebum plays a role in moisturizing the skin and hair, and it also helps to protect the skin from external factors such as bacteria and moisture loss.Rate this question:
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- 20.
_ are most plentiful in the fingertips.
- A.
Sebum glands
- B.
Melanin deposits
- C.
Hair follicles
- D.
Nerve endings
Correct Answer
D. Nerve endingsExplanation
Nerve endings are most plentiful in the fingertips. Nerve endings are responsible for transmitting sensory information, such as touch, temperature, and pain, to the brain. The fingertips have a high concentration of nerve endings compared to other parts of the body, which allows for increased sensitivity and tactile perception. This is why we can feel even the slightest touch or texture with our fingertips.Rate this question:
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- 21.
The skin's form, strength, and flexibility come from _ fibers in the dermis called collagen and elastin.
- A.
Adipose
- B.
Protein
- C.
Muscle
- D.
Nerve
Correct Answer
B. ProteinExplanation
The skin's form, strength, and flexibility come from proteins in the dermis called collagen and elastin. These proteins provide structure and support to the skin, allowing it to maintain its shape and elasticity. Collagen gives the skin its strength, while elastin allows it to stretch and bounce back. Without these proteins, the skin would be weak, saggy, and prone to wrinkles and other signs of aging.Rate this question:
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- 22.
The _ of the skin depends on melanin and blood supply.
- A.
Color
- B.
Health
- C.
Thickness
- D.
Elasticity
Correct Answer
A. ColorExplanation
The color of the skin depends on melanin and blood supply. Melanin is responsible for the pigmentation of the skin, determining its color. The more melanin present, the darker the skin will be. Additionally, blood supply plays a role in skin color as well. Blood vessels near the surface of the skin can give it a reddish or pinkish hue. Therefore, the color of the skin is influenced by the amount of melanin and the blood supply to the skin.Rate this question:
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- 23.
The cells called _ in the germinativum and papillary layers produce pigment granules.
- A.
Arrector pili
- B.
Sebaceous
- C.
Sebum
- D.
Melanocytes
Correct Answer
D. MelanocytesExplanation
Melanocytes are cells found in the germinativum and papillary layers that produce pigment granules. These pigment granules are responsible for giving color to the skin, hair, and eyes. Melanocytes produce a pigment called melanin, which determines the color of these body parts.Rate this question:
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- 24.
Sweat is excreted by the _ glands.
- A.
Sudoriferous
- B.
Sebum
- C.
Lymph
- D.
Oil
Correct Answer
A. SudoriferousExplanation
Sweat is excreted by the sudoriferous glands. These glands are responsible for producing sweat, which helps regulate body temperature and remove toxins from the body. Sebum is an oily substance produced by the sebaceous glands, not sweat glands. Lymph is a fluid that circulates throughout the lymphatic system, not a gland. Oil is a general term for a viscous liquid, but it is not specifically related to the production of sweat.Rate this question:
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- 25.
The functions of the _ glands include eliminating waste products.
- A.
Sebum
- B.
Sweat
- C.
Pili
- D.
Oil
Correct Answer
B. SweatExplanation
Sweat glands are responsible for producing and secreting sweat, which helps regulate body temperature and eliminate waste products such as water, salt, and urea. Sebum is produced by sebaceous glands and helps moisturize the skin and hair. Pili are hair follicles responsible for hair growth. While oil can refer to sebum, it is not specifically mentioned as a function of any glands in the given options.Rate this question:
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- 26.
_ is an oily substance produced by the sebaceous glands.
- A.
Melanin
- B.
Sebum
- C.
Keratin
- D.
Thyroid
Correct Answer
B. SebumExplanation
Sebum is an oily substance produced by the sebaceous glands. It helps to lubricate and waterproof the skin and hair. Sebum also plays a role in protecting the skin from pathogens and maintaining its pH balance.Rate this question:
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- 27.
The palms and soles are lacking _.
- A.
Nerve endings
- B.
An epidermis
- C.
A dermis
- D.
Sebaceous glands
Correct Answer
D. Sebaceous glandsExplanation
The correct answer is sebaceous glands. The palms and soles of the feet do not have sebaceous glands, which are responsible for producing oil to moisturize the skin and hair. This is why these areas tend to be drier compared to other parts of the body.Rate this question:
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- 28.
The primary function of _ is to prevent evaporation of moisture from the skin.
- A.
Sweat
- B.
Nerves
- C.
Sebum
- D.
Mescles
Correct Answer
C. SebumExplanation
Sebum is an oily substance produced by the sebaceous glands in the skin. Its primary function is to prevent evaporation of moisture from the skin. Sebum forms a protective barrier on the skin's surface, helping to retain moisture and prevent dehydration. It also helps to lubricate the skin and hair, keeping them soft and supple.Rate this question:
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- 29.
_ and sweat pores are normally resistant to bacterial attack, but allow the entry of special drugs and chemicals into the body.
- A.
Hair follicles
- B.
Arrector pili
- C.
Nerve endings
- D.
Papillae
Correct Answer
A. Hair folliclesExplanation
Hair follicles are the correct answer because they are structures in the skin that produce hair. Hair follicles are normally resistant to bacterial attack due to their protective layers, such as sebum and keratin. However, they also allow the entry of special drugs and chemicals into the body, as these substances can be absorbed through the hair follicles and reach the bloodstream. This is why certain medications, such as topical creams or solutions, are applied to the skin and can be absorbed through the hair follicles for systemic effects.Rate this question:
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- 30.
The skin performs a wide range of important functions including _.
- A.
Excretion
- B.
Secretion
- C.
Absorption
- D.
All answers are correct
Correct Answer
D. All answers are correctExplanation
The skin performs a wide range of important functions including excretion, secretion, and absorption. Excretion refers to the process of eliminating waste products from the body through sweat glands. Secretion involves the production and release of substances such as oils and sweat. Absorption refers to the ability of the skin to take in certain substances, such as medications or chemicals. All of these functions are crucial for maintaining overall health and balance in the body.Rate this question:
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- 31.
The body's internal temperature is kept at about _ degrees Fahrenheit by the blood and the sudoriferous glands.
- A.
96.8
- B.
98.6
- C.
99.1
- D.
99.2
Correct Answer
B. 98.6Explanation
The body's internal temperature is regulated by the blood and the sudoriferous glands to maintain a temperature of 98.6 degrees Fahrenheit. This temperature is considered the normal body temperature for most individuals. It is important for the body to maintain this temperature as it is optimal for the functioning of various physiological processes. Deviations from this temperature can indicate the presence of an illness or infection.Rate this question:
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- 32.
Water lost by _ carries salt and other chemicals with it.
- A.
Sebum
- B.
Perspiration
- C.
The nerves
- D.
The hair follicles
Correct Answer
B. PerspirationExplanation
Perspiration is the correct answer because when we sweat, water is lost from our body along with salt and other chemicals. Sebum is a waxy substance produced by the sebaceous glands in our skin, which helps to keep our skin moisturized. The nerves and hair follicles do not carry water or salt and other chemicals with them.Rate this question:
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- 33.
The symptoms of disease that a barber may observe on a client's skin include.
- A.
Lesions
- B.
Discolorations
- C.
Rashes
- D.
All answers are correct
Correct Answer
D. All answers are correctExplanation
A barber may observe various symptoms of disease on a client's skin, such as lesions, discolorations, and rashes. These symptoms can indicate different types of skin conditions or infections. Therefore, all of the given answers are correct as they encompass the range of possible symptoms that a barber may notice on a client's skin.Rate this question:
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- 34.
If a client has _, you should suggest medical treatment.
- A.
Wrinkles
- B.
Dry skin
- C.
Inflamed skin
- D.
An unflattering hair style
Correct Answer
C. Inflamed skinExplanation
When a client has inflamed skin, it indicates that there is an underlying issue causing inflammation and irritation. In such cases, suggesting medical treatment is important to address the root cause and provide relief. Medical treatment may include topical creams, ointments, or oral medications to reduce inflammation, soothe the skin, and promote healing. It is crucial to address inflamed skin promptly to prevent further discomfort and potential complications.Rate this question:
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- 35.
A lesion is a structural change in the tissues of the skin caused by _.
- A.
Injury
- B.
Disease
- C.
Injury or disease
- D.
Poor diet
Correct Answer
C. Injury or diseaseExplanation
A lesion refers to a structural change in the skin tissues, which can be caused by either injury or disease. This means that any physical damage or trauma to the skin, such as cuts, burns, or bruises, can result in a lesion. Additionally, certain diseases or medical conditions can also lead to the formation of lesions on the skin. These can include conditions like psoriasis, eczema, or even skin cancer. Therefore, the correct answer is injury or disease.Rate this question:
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- 36.
An example of an objective symptom is _.
- A.
Itching
- B.
Pain
- C.
Pressure
- D.
Pimples
Correct Answer
D. PimplesExplanation
An example of an objective symptom is pimples. Objective symptoms are observable and measurable signs of a medical condition that can be seen or detected by a healthcare professional. In the case of pimples, they can be visually observed on the skin and are a common symptom of acne. Unlike subjective symptoms, which are based on a patient's perception or feeling, objective symptoms provide concrete evidence of a condition. Therefore, pimples serve as an example of an objective symptom.Rate this question:
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- 37.
_ lesions may be characterized by flat, nonpalpable changes in skin color.
- A.
Primary
- B.
Secondary
- C.
Tertiary
- D.
Complex
Correct Answer
D. ComplexExplanation
Complex lesions may be characterized by flat, nonpalpable changes in skin color. This means that the lesions have multiple components or features, making them more intricate and difficult to classify. These lesions may involve a combination of different types of skin color changes, such as patches of different colors or patterns. Unlike primary or secondary lesions, which have specific characteristics and can be easily identified, complex lesions require more careful examination and evaluation to determine their nature and potential underlying causes.Rate this question:
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- 38.
A _ is a primary skin lesion.
- A.
Hypertrophy
- B.
Scab
- C.
Papule
- D.
Scale
Correct Answer
C. PapuleExplanation
A papule is a primary skin lesion. A papule is a small, elevated, solid bump on the skin that is less than 1 centimeter in diameter. It is usually caused by inflammation or infection in the skin. Unlike a blister or a pustule, a papule does not contain any fluid or pus. It can vary in color and can be itchy or tender to the touch. Examples of conditions that can cause papules include acne, eczema, and insect bites.Rate this question:
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- 39.
A closed, abnormally developed sac containing _ above or below the skin is a cyst.
- A.
Blood
- B.
Lymph
- C.
Pus
- D.
Fluid, semifluid, or morbid matter
Correct Answer
D. Fluid, semifluid, or morbid matterExplanation
A cyst is a closed, abnormally developed sac that can contain fluid, semifluid, or morbid matter. This means that the contents of a cyst can vary and may include substances such as fluid, pus, or other abnormal matter.Rate this question:
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- 40.
_ and insect bites are examples of wheals.
- A.
Hives
- B.
Pimples
- C.
Cysts
- D.
Keloids
Correct Answer
A. HivesExplanation
Hives, also known as urticaria, are raised, itchy welts on the skin that are usually caused by an allergic reaction. They can be triggered by various factors such as certain foods, medications, insect bites, or exposure to allergens. The statement in the question suggests that hives are an example of wheals, which are temporary raised areas on the skin caused by fluid accumulation. Therefore, the correct answer is hives.Rate this question:
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- 41.
An inflamed pimple containing _ is a pustule.
- A.
Lymph
- B.
Solid matter
- C.
Blood
- D.
Pus
Correct Answer
D. PusExplanation
A pustule is an inflamed pimple that contains pus. Pus is a thick, yellowish fluid that forms at the site of infection or inflammation. It is composed of dead white blood cells, bacteria, and tissue debris. When a pimple becomes infected, the body's immune response causes the accumulation of pus, resulting in the formation of a pustule.Rate this question:
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- 42.
Some _ skin lesions are characterized by a collection of material on the skin.
- A.
Primary
- B.
Secondary
- C.
Pigmented
- D.
Nervous
Correct Answer
B. SecondaryExplanation
Secondary skin lesions are characterized by a collection of material on the skin. Unlike primary lesions, which arise from previously normal skin, secondary lesions result from changes in primary lesions or from external factors such as scratching, infection, or trauma. Examples of secondary lesions include scales, crusts, ulcers, scars, and excoriations. These lesions often provide valuable clues about the underlying cause or progression of a skin condition.Rate this question:
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- 43.
Cicatrix is another term for _.
- A.
Verruca
- B.
Scale
- C.
Scar
- D.
Crust
Correct Answer
C. ScarExplanation
Cicatrix is another term for scar.Rate this question:
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- 44.
One type of scale is excessive _.
- A.
Pimples
- B.
Dandruff
- C.
Pigmentation
- D.
Freckles
Correct Answer
B. DandruffExplanation
Excessive dandruff refers to a condition where there is an abnormal amount of flaky skin on the scalp. It is characterized by itching, dryness, and white or grayish flakes that may fall onto the shoulders. This type of scale can be considered excessive because it is not a normal amount of dead skin cells shed from the scalp.Rate this question:
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- 45.
A(n) _ is a hypertrophy not related to pigmentation.
- A.
Albinism
- B.
Chloasma
- C.
Keratoma
- D.
Stain
Correct Answer
C. KeratomaExplanation
A keratoma is a type of hypertrophy that is not related to pigmentation.Rate this question:
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- 46.
A keratoma, also called a _, is a thickened patch of skin caused by continuous pressure or friction.
- A.
Verruca
- B.
Fissure
- C.
Callus
- D.
Cicatrix
Correct Answer
C. CallusExplanation
A keratoma, also called a callus, is a thickened patch of skin caused by continuous pressure or friction. A callus forms as a protective response to constant rubbing or pressure on the skin, typically on the hands or feet. This thickening of the skin helps to prevent damage and injury to the underlying tissues. Calluses are commonly seen in individuals who engage in activities that involve repetitive friction or pressure, such as manual labor or playing musical instruments. They can be painful or uncomfortable, but are generally harmless and can be treated with proper care and footwear adjustments.Rate this question:
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- 47.
Verruca is a _ caused by a virus.
- A.
Lentigine
- B.
Hypertrophy
- C.
Fissure
- D.
Mole
Correct Answer
B. HypertrophyExplanation
Verruca is a condition caused by a virus that leads to the abnormal growth or enlargement of a particular tissue or organ, known as hypertrophy. Lentigine refers to small, dark spots on the skin, fissure refers to a narrow opening or crack in the skin, and mole refers to a dark spot or irregularity on the skin. None of these options accurately describe the condition of verruca, which is why hypertrophy is the correct answer.Rate this question:
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- 48.
A(n) _ is a hypertrophy not related to pigmentation.
- A.
Albinism
- B.
Chloasma
- C.
Keratoma
- D.
Stain
Correct Answer
C. KeratomaExplanation
A keratoma is a type of hypertrophy that is not related to pigmentation. This means that it is a growth or enlargement of tissue that does not involve changes in skin color. Albinism, chloasma, and stain are all conditions that involve pigmentation changes, so they are not the correct answer.Rate this question:
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- 49.
The congenital absence of _ in the body, which may be partial or complete, is called albinism.
- A.
Fat
- B.
Bone
- C.
Hair
- D.
Melanin
Correct Answer
D. MelaninExplanation
Albinism is a condition characterized by the congenital absence of melanin in the body. Melanin is responsible for the pigmentation of the skin, hair, and eyes. In individuals with albinism, there is either a partial or complete absence of melanin, resulting in very light or white skin, hair, and eye color. Therefore, the correct answer is melanin.Rate this question:
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- 50.
_ is characterized by abnormal white patches.
- A.
Leukoderma
- B.
Nevi
- C.
A stain
- D.
Eczema
Correct Answer
A. LeukodermaExplanation
Leukoderma is characterized by abnormal white patches on the skin. This condition is also known as vitiligo, where the melanocytes, which are responsible for producing skin pigment, are destroyed. As a result, depigmented patches appear on the skin. Nevi refers to moles or birthmarks, which are not necessarily characterized by white patches. A stain is a discoloration on the skin, but it does not specifically refer to white patches. Eczema is a skin condition characterized by red, itchy, and inflamed skin, but it does not typically cause white patches. Therefore, the correct answer is Leukoderma.Rate this question:
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