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Questions and Answers
What is the role of a dermatologist?
What is the role of a dermatologist?
- To provide nutritional advice related to skin health
- To create cosmetic products for skin care
- To perform surgeries on hair and skin
- To specialize in diseases and disorders of skin, hair, and nails (correct)
Which of the following layers of skin is located directly beneath the epidermis?
Which of the following layers of skin is located directly beneath the epidermis?
- Papillary layer (correct)
- Stratum corneum
- Reticular layer
- Subcutaneous layer
Which type of tissue acts as a protective cushion for the skin?
Which type of tissue acts as a protective cushion for the skin?
- Muscle tissue
- Nervous tissue
- Subcutaneous tissue (correct)
- Epithelial tissue
What is the texture of healthy skin characterized by?
What is the texture of healthy skin characterized by?
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Which nerve fibers are distributed to the arrector pili muscles attached to hair follicles?
Which nerve fibers are distributed to the arrector pili muscles attached to hair follicles?
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Study Notes
Skin Overview
- A dermatologist specializes in diseases and disorders concerning skin, hair, and nails.
- Healthy skin exhibits a fine-grained texture and remains smooth.
Skin Structure
- Skin appendages include hair, nails, sudoriferous glands (sweat), and sebaceous glands (oil).
- The layers of skin, from outermost to innermost, are epidermis, dermis, and subcutaneous tissue.
Skin Functionality
- As skin cells die, they migrate to the surface, replenishing the dead cells shed from the stratum corneum.
- The layer just beneath the epidermis is known as the papillary layer.
Tissue Characteristics
- Subcutaneous tissue contributes to body smoothness and contour, stores fats for energy, and provides a protective cushion for the skin.
Nerve Functionality
- Motor nerve fibers are responsible for innervating the arrector pili muscles linked to hair follicles.
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