Podcast
Questions and Answers
_________ is also known as acne vulgaris, a skin disorder characterized by chronic inflammation of the sebaceous glands.
_________ is also known as acne vulgaris, a skin disorder characterized by chronic inflammation of the sebaceous glands.
acne
What are arrector pili muscles?
What are arrector pili muscles?
Small, involuntary muscles that cause goosebumps.
What is a callus?
What is a callus?
A thickening of the skin caused by continued pressure.
What is collagen?
What is collagen?
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A comedo is also known as __________.
A comedo is also known as __________.
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What are dermal papillae?
What are dermal papillae?
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What does a dermatologist specialize in?
What does a dermatologist specialize in?
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What is dermatology?
What is dermatology?
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The __________ is also known as derma, corium, or true skin.
The __________ is also known as derma, corium, or true skin.
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What is elastin?
What is elastin?
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The epidermal-dermal junction is located at the top of the ________ layer.
The epidermal-dermal junction is located at the top of the ________ layer.
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What is the epidermis?
What is the epidermis?
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What does an esthetician specialize in?
What does an esthetician specialize in?
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Eumelanin is a type of melanin that is dark brown to __________ in color.
Eumelanin is a type of melanin that is dark brown to __________ in color.
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What is keratin?
What is keratin?
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What are melanocytes?
What are melanocytes?
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What do motor nerve fibers do?
What do motor nerve fibers do?
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What is the papillary layer?
What is the papillary layer?
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A papule is also known as a __________.
A papule is also known as a __________.
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What is pheomelanin?
What is pheomelanin?
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What is a pustule?
What is a pustule?
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What is the reticular layer?
What is the reticular layer?
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Sebaceous glands are also known as __________.
Sebaceous glands are also known as __________.
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What is sebum?
What is sebum?
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What is a secretory coil?
What is a secretory coil?
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What are secretory nerve fibers?
What are secretory nerve fibers?
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Study Notes
Skin Disorders and Functions
- Acne is a common skin disorder, also known as acne vulgaris, characterized by chronic inflammation of sebaceous glands due to retained secretions and the presence of Propionibacterium acnes bacteria.
- Sebaceous Glands produce sebum, a fatty substance that lubricates the skin and keeps hair soft; these glands are connected to hair follicles.
Skin Anatomy
- Dermis: Known as true skin, it consists of two main layers: the papillary layer and the reticular layer; it houses vital components such as blood vessels, fat cells, and glands.
- Epidermis: The outermost, thinnest layer of skin, comprising five distinct strata: stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, and stratum germinativum.
Skin Structures
- Arrector Pili Muscles: Small involuntary muscles found at the base of hair follicles, responsible for causing goosebumps.
- Dermal Papillae: Cone-shaped elevations that support the hair follicle and provide nutrients.
- Papillary Layer: The outer layer of the dermis that lies directly beneath the epidermis and contains nerve endings.
Skin Pigments and Proteins
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Melanin: Pigment produced by melanocytes, influencing skin color; includes two types:
- Eumelanin: Dark brown to black, prevalent in darker-skinned individuals.
- Pheomelanin: Red to yellow, predominantly found in lighter-skinned individuals.
- Keratin: A fibrous protein that forms hair and nails and is a significant component of skin structure.
- Collagen: A fibrous protein that provides skin with strength and form.
- Elastin: Similar to collagen, it forms elastic tissue, allowing skin to maintain its firmness and flexibility.
Skin Conditions
- Comedo: A hair follicle filled with keratin and sebum, commonly referred to as a blackhead.
- Papule: A small elevation on the skin, typically solid and fluid-free, which can develop into a pimple.
- Pustule: An inflamed papule containing pus at its apex, often seen in acne.
- Callus: Thickened skin resulting from repeated pressure, particularly on hands and feet.
Professional Roles
- Dermatologist: A physician specializing in skin, hair, and nail disorders.
- Esthetician: A specialist focused on skincare, beautification, and maintenance of skin health.
Nerve Fibers and Responses
- Motor Nerve Fibers: Impulses from the brain to muscles, including those attached to hair follicles (arrector pili).
- Sensory Nerve Fibers: Responsible for transmitting sensations from the skin to the brain.
- Secretory Nerve Fibers: Regulate perspiration from sweat glands and control sebum flow, part of the autonomic nervous system.
Additional Terminology
- Secretory Coil: The coiled base of a sweat gland, also referred to as the fundus.
- Reticular Layer: The deeper layer of the dermis that provides nutrients and oxygen to the skin, containing glands, blood vessels, and nerve endings.
Studying That Suits You
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Description
Test your knowledge on skin terminology and conditions with these flashcards from Milady's Chapter 7. Each card features key terms like acne, arrector pili muscles, and calluses along with their definitions. Perfect for students studying esthetics and skincare.
