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49 Cards in this Set
- Front
- Back
ectoderm
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outer developmental layer of skin
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ABCD
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examination of pigmented areas, test for cancerous pigments
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elastin
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yellow fibers, gives matrix its rubbery quality(stretchability)
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covering
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main function of IS
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striae
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stretch marks, due to extreme stretching of the skin which tears the dermis; also called white scars
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Albinism
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inherited condition reflecting an inability of melanocytes to synthesize melanin
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pallor
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blanching; paling of the skin
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squamous cell carcinoma
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cells of stratum spinosum develop lesions; metastasizes to the lymph nodes
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allopecia
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baldness
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root
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part of the hair that is embedded in the skin
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cyanosis
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bluish tint of Caucasians when hemoglobin is poorly oxgynated
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jaundice
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yellow cast to the skin
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stratum spinosum
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"spiny" layer, contains prickle cells, tonofilaments, Lnagerhan's cells
Second deepest layer of the epidermal layer |
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benign
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not cancerous
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lines of cleavage
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tension lines
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vitiligo
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an abnormality of skin pigmentation characterized by a loss and uneven dispersal of melanin(Michael Jackson's disease)
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melanin
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provides the skin color of Blacks and Hispanics
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mesoderm
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middle developmental layer of skin
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stratum granulosum
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"granular" layer; contains keratohyalin(granules), Langerhan's cells
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shaft
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part of the hair that projects from the skin; determines the overall shape of hair
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dermis
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layer of the skin deep to the epidermis; composed of dense irregular connnective tissue
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malignant melanoma
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rare but deadly cancer of the pigment producing cells
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basal cell carcinoma
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cells of the lowest level of the epidermis invade the dermis and hypodermis; exposed area develop ulcers; show to metastisize(grow)
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first degree burn
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partial thickness burn; affects only the epidermis
redness, pain, swelling, 2-3 |
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erythema
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redness,
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endoderm
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inner developmental layer of skin, subcutaneous tissue
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wrinkles
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appear when dermis elasticity declines from age or excessive sun exposure
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dermal papillae
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fingerprints, projection of the superioir surface that protrude into or indent the epidermis above
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burn
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tissue damage to the skin which denatures cell proteins and causes cell death in affected areas
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integumentary system
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includes those structures whose primary function is to cover and protect
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hirsutism
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excessive hairiness
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collagen
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white fibers, provide high tensile strngth(maximum stress that a material can withstand before it breaks)
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epidermis
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surface coat of the skin; superficial layer of the skin; composed of keratinized stratified squamous epithelial tissue
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hematomas
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another name for bruises , blue or black marks,
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skin
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composed of the dermis and the epidermis
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melanocytes
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specialized epithelial cells which synthesize melanin, (dark pigment which iparts color to the skin and hair)
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carotene
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provides the skin color of Orientals
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malignant
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cancerous
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stratum basale
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"basal layer" deepest epidermal layer; contains Merkel's cells, and melanocytes
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prickle cells
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keratinocytes which contain minute spinelike projections connecting them to other cells of the layer
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stratum lucidum
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2nd outermost layer of epidermis, "clear layer", does not always appear
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2nd degree burn
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partial thickness burn; affects the epidermis and upper regions of the dermis
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flexure lines
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dermal modifications resulting when the dermis is secured to deeper structures by the hypodermis
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stratum germinativum
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"growing layer" consists of strautm basale and stratum spinosum which generate epidermal GROWTH AND RENEWAL
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3rd degree burn
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full thickness burn; affects the epidermis and dermis
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keratin
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water-insoluble protein found in the epidermis, hair, and nails that make those structures hard and water repellent
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stratum corneum
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"horny layer", accounts for 3/4 of the thickness of the epidermis; contains 20-30 rows of dead cell remnants filled with keratin fibers which are constantly being replaced through the process of mitosis
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Langerhan's cells
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macrophage-like cells which arise from the bone marrow and migrate to the epidermis; undergo the process of phagocytosis
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keratinized stratified squamous epithelium
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tissue that forms epidermis
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