Questions and Answers
What are the functions of the skin?
Regulation of body temperature and protection
Which of the following layers of skin does not contain any blood vessels?
Where does mitosis (cell division) or replacement of the skin cells take place?
Stratum Basale
What determines the color of the skin?
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Where is the Stratum Lucidum layer found?
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Which layer of the skin contains collagen protein and elastin fibers?
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What gland excretes sweat?
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Where is the greatest concentration of Sudoriferous Glands found?
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What is the function of Sebum?
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What causes most skin problems?
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Which layer of skin is located below the Dermal Layer?
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What do nerve bundles in the subcutaneous tissue respond to?
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Which ways to protect the skin from the sun's harmful rays are incorrect?
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Which skin type has a rough texture with blackheads and enlarged pores?
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Which skin type is recognized by the shiny T-zone?
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What is keratinization?
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What is melanin?
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What is collagen?
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What is the epidermis?
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What is the dermal layer of skin composed of?
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What is the function of the subcutaneous layer?
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What is another name for Sudoriferous Glands?
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What is the most common skin type?
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What is the Stratum Corneum?
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What characterizes dry skin?
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What are the six basic functions of the skin?
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What are the three main layers of skin?
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What is another name for the epidermis?
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What is the epidermis composed of?
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What is basic melanin?
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What is hyperpigmentation?
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Where is the Stratum Corneum located?
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What is the function of the Stratum Corneum?
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What is another name for the Stratum Corneum?
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What cell type is found in the Stratum Corneum?
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What does the Stratum Lucidum do?
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What cell type is found in the Stratum Lucidum?
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What is Stratum Granulosum?
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What are grain-like cells?
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Study Notes
Skin Functions and Structure
- Skin regulates body temperature and provides protection.
- The epidermis does not contain blood vessels.
- Mitosis, or skin cell replacement, occurs in the stratum basale.
- Melanin is the pigment responsible for skin color.
Skin Layers
- The stratum lucidum is exclusively found on the soles of feet and palms of hands.
- Collagen and elastin fibers that offer support and elasticity are in the dermal layer, particularly the stratum granulosum.
- The subcutaneous layer, below the dermis, consists of adipose (fatty) and loose connective tissue.
Glands and Secretions
- Sweat is produced by sudoriferous (sweat) glands, with the highest concentration found on palms, soles, scalp, forehead, and underarms.
- Sebum, an oil produced by sebaceous glands, combines with sweat to form the acid mantle, crucial for skin barrier function.
- Most skin problems stem from issues associated with sebaceous glands.
Skin Types and Conditions
- Oily skin is characterized by a rough texture with blackheads and enlarged pores.
- Combination skin features a shiny T-zone with both oily and dry areas.
- Dry skin can be identified by peeling and flaking.
Skin Anatomy
- The skin has six basic functions: sensation, heat regulation, absorption, protection, excretion, and secretion.
- It consists of three main layers: epidermis, dermis, and subcutaneous.
- The epidermis is also referred to as the cuticle or scarf layer and contains five distinct layers.
Epidermis Details
- The five layers of the epidermis: stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, and stratum basale.
- Keratinocytes and epithelial cells primarily compose the epidermis.
- Basic melanin is genetically inherited, while hyperpigmentation results from external factors.
Specific Layer Functions
- The stratum corneum is the uppermost layer, crucial for maintaining moisture balance and protected by the acid mantle.
- It is also known as the horny layer and contains keratin protein cells.
- The stratum lucidum reduces friction between the stratum corneum and stratum granulosum, featuring squamous cells.
- Cells in the stratum granulosum take on a more regular shape and appear grain-like.
Additional Notes
- The stratum corneum is continuously shed, ensuring skin renewal.
- The subcutaneous layer acts as a shock absorber, protecting underlying bones.
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Description
Test your knowledge on skin theory with these flashcards covering key functions and layers of the skin. Each card presents a question that reinforces important concepts such as protection, blood vessels, and cell division. Perfect for studying or review.
