Questions and Answers
The medical branch of science that deals with the study of the skin, its functions, and diseases is _______.
dermatology
About how many years of post-high school education and training are required to become a dermatologist?
Twelve
The largest organ of the human body is the _______.
skin
The average adult skin weighs _________ pounds.
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The surface of healthy skin is slightly ________.
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Continued pressure on any part of the skin causes it to thicken and develop into a(n) ________.
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How does the skin of the scalp differ from other skin?
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The outermost and thinnest layer of the skin is the _______.
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The epidermis has ________ layers.
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The layer of skin that is seen and treated by the cosmetologist is the ________.
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What is a fibrous protein that is the principal component of hair and nails?
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The skin layer in which the shedding of skin cells first begins is the stratum _________.
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The deepest layer of the epidermis, the basal cell layer, is also known as the _______.
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The stratum germinativum is composed of several layers with special cells that produce a dark skin pigment called _______.
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What is the name of the special cell in the stratum germinativum, responsible for producing dark skin pigment?
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The underlying or inner layer of the skin, which is also called the derma corium, cutis, or true skin, is the _______.
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The highly sensitive dermis layer is about _________ times thicker than the epidermis.
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The muscle that causes goosebumps when a person is frightened or cold is the ________.
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The outermost layer of the dermis is the _______ layer.
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Small, cone-shaped elevations at the bottom of hair follicles are known as ________.
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The top of the papillary layer where it joins the epidermis is the _________.
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The deeper layer of the dermis that supplies the skin with oxygen and nutrients is the ________.
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Fatty tissues found below the dermis is called _______.
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Which type of nerve fibers carry impulses from the brain to the muscles?
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What layer of the dermis houses the nerve endings that provide the body with the sense of touch?
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The tiny grains of pigment deposited in cells that provide skin with its color are ________.
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The melanin produced by the body that is red to yellow in color is ________.
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________ helps protect sensitive cells from UV rays.
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The fibrous protein that gives skin its flexibility and helps skin regain its shape after being expanded is __________.
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When sebum hardens and the sebaceous duct becomes clogged, the pore impaction that is formed is a _______.
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What is a small, round elevation on the skin that contains no fluid but may develop pus?
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Water is the number one nutrient of the body and composes what percentage of the body's weight?
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Vitamin _______ may help improve the skin's elasticity and thickness.
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Vitamin ________ promotes the production of collagen.
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Which vitamin enables the body to properly absorb and use calcium?
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Study Notes
Skin Structure and Functions
- Dermatology is the medical branch focusing on skin study, its functions, and diseases.
- The skin is the largest organ of the human body, weighing between 6 to 9 pounds on average.
- Healthy skin has a slightly acidic surface, which helps protect it.
- Continued pressure on skin can lead to callus formation as it thickens.
Skin Layers
- The outermost layer of skin is the epidermis, which consists of five layers.
- The visible layer treated by cosmetologists is called the Stratum Corneum.
- The deepest part of the epidermis, known as the stratum germinativum, houses melanocytes that produce melanin, responsible for skin color.
- The stratum spinosum is where the process of shedding skin cells begins.
Dermis Anatomy
- The underlying layer of skin, called the dermis (or true skin), is about 25 times thicker than the epidermis.
- The dermis contains the arrector pili muscle, which causes goosebumps.
- The dermal papillae are small, cone-shaped elevations at the base of hair follicles.
- The papillary layer contains nerve endings responsible for the sense of touch.
Tissue and Nutrients
- Subcutaneous tissue, which is fatty, is located beneath the dermis providing insulation and cushioning.
- Melanin serves as a UV ray protector for sensitive skin cells.
- Collagen and elastin are fibrous proteins that maintain skin structure and elasticity.
Vitamins and Skin Health
- Water constitutes 50 to 70 percent of the body's weight, making it essential for skin health.
- Vitamin A enhances skin elasticity and thickness; Vitamin C promotes collagen production; Vitamin D aids in calcium absorption.
Skin Conditions
- A comedo forms when sebum hardens and clogs the sebaceous duct, potentially leading to acne.
- A papule is a small elevation on the skin that typically does not contain fluid but may develop pus.
Dermatology Education
- Becoming a dermatologist requires about twelve years of post-high school education and training.
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Description
Test your knowledge on skin structure, growth, and nutrition with this quiz based on Milady Chapter 7. The questions cover key concepts in dermatology, including the functions and diseases of the skin. Perfect for cosmotologists and students in allied health fields.
