Questions and Answers
What does healthy skin require to maintain its health, elasticity, vibrancy, and color?
Special care
What is the technical name for the study of skin, including its structure, functions, diseases, and treatment?
Dermatology
What is the outer protective layer of the skin called?
Epidermis
What is another name for the stratum germinativum?
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Where does mitosis (cell division) or replacement of the skin take place?
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Which layer of skin does not contain any blood vessels?
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The stratum germinativum and what other layer of the skin contain melanin?
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On the human body, where is the thickest skin located?
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Where are the blood vessels found that transport nourishment to the skin and nerves?
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Where are sudoriferous glands, sebaceous glands, sensory nerve endings, arrector pili muscles, and a major portion of each hair follicle found?
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What is the layer of the epidermis that is shed and replaced constantly?
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What quality is notable about the stratum corneum?
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The stratum corneum is composed of what type of cells?
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Which layer is the top or uppermost layer of the epidermis?
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What part of the skin is often referred to as true skin?
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Which layer of the skin contains collagen protein fibers to help give the skin its elasticity and pliability?
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What causes the deterioration of collagen and elastin fibers during the aging process?
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What is the major function of the sudoriferous gland?
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What does the sebaceous gland produce?
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What is the function of sebum?
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On what area of the body would you not find any sebaceous glands?
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Sweat or perspiration is excreted by what gland?
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What are the small openings onto the skin from the sudoriferous glands called?
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Sudoriferous and sebaceous glands are referred to as what?
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What controls the excretion of perspiration from the skin?
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Control and regulation of the body temperature by the sudoriferous glands helps maintain the body temperature at what level?
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Where is the greatest concentration of sudoriferous glands found?
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What is the subcutaneous layer of the skin made up of mostly?
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The papillary canal secretes oil (sebum) onto the?
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Nerve bundles in the subcutaneous tissue branch into the stratum granulosum layer and respond to what?
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Where is the subcutaneous layer located?
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Which layer of the skin contains large blood vessels that transport nourishment to the skin?
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What causes almost 90% of the skin's wrinkles?
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What does the term 'chronic' refer to in terms of conditions?
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What is the term used to identify conditions that are brief and severe?
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A disease influenced by weather is referred to as what?
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What is the pH level of healthy skin?
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What is an allergic reaction to cosmetics used?
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What is an example of a subjective symptom?
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What is it called when anticipating the most probable course a disease may follow?
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Papule is an example of what?
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What is the technical term for freckles?
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Herpes simplex is the technical term for what?
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A cyst is defined by which of the following descriptions?
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What is a secondary lesion appearing as round dry patches of skin covered with rough silvery scales?
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What is defined as a solid mass in the skin?
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What is a fissure?
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Study Notes
Skin Health and Care
- Healthy skin requires special care to maintain elasticity, vibrancy, and color.
Dermatology
- The technical name for the study of skin, including structure, functions, diseases, and treatment, is dermatology.
Skin Structure
- The outer protective layer of skin is known as the epidermis.
- Stratum germinativum is also referred to as the basal layer or stratum basale.
- Mitosis, or cell division, occurs in the stratum germinativum.
- The epidermis lacks blood vessels.
Skin Layers and Composition
- Melanin is present in both the stratum germinativum and stratum spinosum.
- The thickest skin on the human body is found on the palms and soles of the feet.
- Blood vessels that nourish the skin and nerves are located in the subcutaneous layer.
- The dermis contains sudoriferous glands, sebaceous glands, sensory nerve endings, and arrector pili muscles.
Epidermis Details
- The stratum corneum is the constantly shed and replaced layer of the epidermis and is the toughest layer.
- Composed of keratin cells, the stratum corneum is the uppermost layer of the epidermis.
- The term "true skin" refers to the dermis.
Dermis Features
- The dermis contains collagen protein fibers which provide skin elasticity and pliability.
- Aging leads to the deterioration of collagen and elastin fibers, resulting in wrinkles.
Glands and Their Functions
- Sudoriferous glands play a major role in body temperature regulation.
- Sebaceous glands produce sebum (oil), which combines with sweat to form the acid mantle.
- Sebaceous glands are absent on the palms and soles of the feet.
- Sweat is secreted by sudoriferous glands through small openings known as pores.
- Sudoriferous and sebaceous glands are classified as duct glands.
Temperature Regulation
- The nervous system controls sweat secretion and, in turn, helps regulate body temperature around 98.6°F (37°C).
- The highest concentration of sudoriferous glands is located on the palms, soles, scalp, forehead, and underarms.
Subcutaneous Layer
- The subcutaneous layer is primarily composed of fatty tissue and lies below the dermis.
- It contains nerve bundles that respond to pain.
Skin Aging and Damage
- About 90% of skin wrinkles are the result of excessive sun exposure.
Skin Conditions
- Chronic conditions are frequent and habitual, whereas acute conditions are brief and severe.
- Seasonal diseases are influenced by weather.
- Healthy skin has a slightly acidic pH level between 4.5 to 5.5.
Allergies and Symptoms
- Dermatitis venenata is an allergic reaction to cosmetics.
- Itching is classified as a subjective symptom.
- Prognosis refers to anticipating the likely course of a disease.
Skin Lesions
- Papules represent primary skin lesions.
- Technical term for freckles is macules.
- Herpes simplex is recognized as fever blisters.
- Cysts are abnormal membranous sacs.
- Psoriasis is a secondary lesion characterized by round dry patches of skin covered with rough silvery scales.
- A tumor is defined as a solid mass in the skin.
- Fissures are skin lesions that become inflexible due to environmental exposure.
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Description
Explore the essential aspects of skin health and care with this quiz. Delve into the structure of the skin, including its layers and composition, and understand the significance of dermatology in treating skin conditions. Test your knowledge on key terms and concepts related to skin health.
