Questions and Answers
What condition is due to excessive production of sebum?
Acne
What layer of the skin contains collagen fibers, blood, and lymph vessels and nerves?
Dermis
What is the outermost layer of the skin?
Epidermis
What exocrine gland is found in the dermis and secretes an oily substance to nourish the skin and hair?
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What layer of the skin is also called the hypodermis because it lies under the dermis?
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What is the outermost part of the epidermis that is keratinized for protection?
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In which layer of the skin do hair follicles originate?
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What are the glands that are also known as eccrine glands and help maintain body temperature?
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What are the functions of the integumentary system?
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Which lesions commonly occur with acne?
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Study Notes
Skin Conditions and Components
- Acne results from an overproduction of sebum, causing clogged pores and inflammation.
- Pustules, a type of skin lesion, are commonly associated with acne outbreaks.
Skin Layers
- The epidermis serves as the outermost layer of the skin, providing a barrier for protection and is keratinized to enhance its defense.
- Dermis houses essential structures, including collagen fibers, blood vessels, lymph vessels, nerves, and hair follicles, playing a vital role in skin strength and elasticity.
- The subcutaneous layer, also known as the hypodermis, lies below the dermis and provides insulation and cushioning for underlying tissues.
Glandular Functions
- Sebaceous glands, located in the dermis, secrete an oily substance that nourishes and protects both skin and hair.
- Sweat glands (eccrine glands) assist in regulating body temperature through perspiration, essential for thermoregulation.
Integumentary System Functions
- Key functions of the integumentary system include:
- Protection against environmental hazards.
- Temperature regulation through sweat production and blood flow adjustments.
- Sensation, allowing the body to react to external stimuli.
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Description
Test your knowledge of the integumentary system with these flashcards. This module covers key terms and concepts, including layers of the skin and related conditions. Great for students studying anatomy and physiology!
