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45 Cards in this Set
- Front
- Back
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The outermost superficial region
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Epidermis
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Composed of kertainized cells
4 distinct cell types and 4-5 layers |
Epidermis
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Produce the fibrous protein keratin and is the most abundant cell type in the epidermis
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keratinocytes
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Produce the brown pigment melanin
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Melanocytes
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Epidermal macrophages that help activate the immune system
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Langerhan's Cells
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Function as touch receptors in association with sensory nerve endings
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Merkel Cells
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most mitosis in this deep epidermal layer, consists of a single row of the youngest keratinocytes
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Stratum Basale
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Melanin granules and Langerhans' cells abundant in this layer, contain weblike system of intermediate filaments to desmosomes
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Stratum Spinosum (prickly layer)
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This layer does not appear in thin skin
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Stratum Lucidum
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Layer of epidermis that is flat, dead, and accounts for 3/4 of the epidermal thickness
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Stratum Corneum
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Accounts for 80% of thickness of the dermis
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Reticular Layer
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Subcutaneous layer deep to the skin, composed of adipose & aerolar connective tissue
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Hypodermis
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Yellow - reddish brown to black pigment, responsible for dark skin colors (freckles and moles)
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Melanin
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Yellow - orange pigment, most obvious in palms and soles of feet
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Carotene
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Reddish pigment responsible for pinkish hue of the skin
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Hemoglobin
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Gland found in palms, soles of the feet & forehead
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Eccrine sweat gland
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Gland found in axillary and anogenital areas (armpit areas)
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Apocrine
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Modified apocrine glands in external ear canal that secrete cerumen (ear wax)
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Ceruminous
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Specialized sweat glands, secrete milk
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Mammary Glands
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Secrete oil called sebum
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Sebaceous Glands
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Pale, fine body hair found in children and adult female
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Vellus
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Coarse, long hair of eyebrows, scalp, axillary and pubic region
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Terminal
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Hair thining in both sexes
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Alopecia
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Most common skin cancer, slow growing and can be cured 99% of the time
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Basal Cell Carcinoma
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Arises most often on scalp, ears, and lower lip. Arises from keratinocytes of stratum spinosum
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Squamous Cell Carcinoma
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Most dangerous type of skin cancer
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Melanoma
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What does ABCD stand for, for the testing of Melanoma?
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Asymmetry, Border, Color, Diameter
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Type of burn: localized redness, swelling and pain. Only epidermis is damaged
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1st Degree Burn
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Epidermis and upper regions of dermis are damaged. Blisters appear
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2nd Degree Burn
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Entire thickness of skin is damaged. Area appears gray-white, cherry, black but no pain since nerve endings are destroyed
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3rd Degree Burn
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This rule estimates the severity of burns
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Rules of Nines
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Downy coat of delicate hairs covering the fetus
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Lanugo
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Substance produced by sebaceous gland that protects the skin of the fetus in the amnion
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Vernix Caseosa
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Outermost layer of hair
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Cuticle
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Indentation at the bottom of hair bulb
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Hair Papillae
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Most blood vessels located in this layer
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Dermis
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Torn to form scar tissue/ stretch marks
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Dermis
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Normal pigment for skin/hair
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Melanocyte
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Core of the center region of hair
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Medulia
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Top dermal layer that forms ridges
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Dermal Papillae
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Midlle Layer of hair
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Cortex
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Sebaceous Gland Problem
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Acne
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Protein in large amounts in the outermost layer of epidermis
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Keratin
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Receptor for LIGHT touch and pressure
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Meissner's corpuscles
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Dermal folds that typically occure at or near joints. Visible on the wrists, fingers, soles and toes
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Flexure Lines
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