Skin Structure and Growth
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| After four years of college, you can become a dermatologist. | False
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| The skin of an average adult weighs about 6 to 9 pounds. | True
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| The highly sensitive dermis layer of connective tissue is about 10 times thicker than the epidermis. | False
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| Melanin provides the skin with enough sun protection to prevent skin damage. | False
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| Vitamins such as A, C, D, and E have been shown to have positive effects on the skin’s health when taken by mouth. | True
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| The medical branch of science that deals with the study of the skin, its functions and diseases, is: | dermatology
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| The largest organ of the human body is the: | Skin
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| The surface of healthy skin is slightly: | Acidic
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| Continued pressure on any part of the skin causes it to thicken and develop into a(n): | Callus
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| The outermost and thinnest layer of the skin is the: | epidermis
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| The epidermis layer of the skin is also known as the: | cuticle layer
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| The layer of skin that we see and is treated by the practitioner is the: | corneum
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| The clear, transparent layer just under the stratum corneum that consists of small cells through which light can pass is the: | stratum lucidum
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| The deepest layer of the epidermis, the basal cell layer, is also known as the: | stratum germinativum
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| The stratum germinativum is composed of several layers with special cells that produce a dark skin pigment called: | melanin
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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: | dermis
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| The muscle that causes goose bumps when a person is frightened or cold is the: | arrector pili muscle
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| The dermis layer is made up of two layers, which are the: | papillary and reticular
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| The top of the papillary layer where it joins the epidermis is the: | epidermal–dermal junction
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| The layer of the dermis that houses the nerve endings which provide the body with the sense of touch is found in the: | papillary layer
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| The deeper layer of the dermis that supplies the skin with oxygen and nutrients is the: | reticular layer
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| Fatty tissue found below the dermis is: | subcutaneous tissue
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| Which type of nerve fibers carry impulses from the brain to the muscles? | motor
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| The tiny grains of pigment deposited in cells that provide skin with its color are: | melanin
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| The melanin produced by the body that is red to yellow in color is: | pheomelanin
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| The fibrous protein that gives skin its flexibility and helps skin regain its shape after being expanded is: | elastin
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| Oil glands that are connected to hair follicles are also called: | sebaceous glands
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| When sebum hardens and the sebaceous duct becomes clogged, the pore impaction that is formed is a: | comedo
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| Which of the following is a function of the skin? a. sensation c. heat regulation b. excretion d. All answers are correct. | All answers are correct.
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| Which vitamin enables the body to properly absorb and use calcium? | vitamin D
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| Water is the number one nutrient of the body and composes what percentage of the body’s weight? | 50 to 70 percent
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| Receptors that send messages to the brain | sensory nerve fibers
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| Produce the dark skin pigment called melanin | melanocytes
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| Fibrous protein that gives the skin form and strength | collagen
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| Fibrous protein that is also the principal component of hair and nails | keratin
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| Small, cone-shaped elevations at the bottom of the hair follicles | dermal papillae
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| Small, round elevation on the skin that contains no fluid but may develop pus | papule
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| The layer of skin directly beneath the epidermis is the ____ | papillary layer
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| What is the correct order of the layers of skin and fat from the outermost layer to the innermost layer? | Epidermis, dermis, subcutaneous
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| Cells that are almost dead and pushed to the surface to replace cells are shed from the _____. | stratum corneum
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| Which type of tissue gives smoothness and contour to the body and provides a protective cushion? | Subcutaneous tissue
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| Basic sensations such as touch, pain, heat, cold, and pressure are registered by _____ | nerve endings
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| The amount and type of pigment produced by an individual are determined primarily by his or her _____. a. genes b. gender c. sun exposure d. age | genes
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| Skin gets its strength, form, and flexibility from _____. | collagen and elastin
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| The scalp has larger and deeper _____ than the skin on the rest of the body. | hair follicles
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| To function correctly, the body needs _____ | carbohydrates, fats, proteins, vitamins, minerals, and water
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| Small, cone-shaped elevations at the bottom of the hair follicles are _____. | dermal papillae
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| The layer of the epidermis where the process of skin-cell shedding begins is the _____. | stratum spinosum
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| An inflamed pimple containing pus is a _____. | pustule
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| The layer of the epidermis that is composed of cells filled with keratin is the _____. | stratum granulosum
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| A fatty or oily secretion that lubricates the skin and preserves the softness of the hair is _____. | sebum
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| The layer of the epidermis also known as the basal cell layer is the _____. | stratum germinativum
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Created by:
mztina216