Term
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Definition
| consists of: skin, nails, hair, sweat glands, and sebaceous glands; largest organ in the body, thickness from 1.5-4 mm |
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Term
| Functions of the Integument |
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Definition
| protection, prevents loss of water, temperature regulation, metabolic regulation, immune defense, sensory receptors, and excretion by means of secretion (secretion = creates substance (rather than just getting rid of waste)) |
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Term
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Definition
| Epidermis (epithelial tissue; avascular), Dermis (connective tissue; avascular), and hyopdermis (not part of integument; connective tissue and vascular) |
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Term
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Definition
| Keratinzed stratified squamous epithelium consists of stratum corneum (apical, dead, anucleate, lots of keratin), statum lucidum (only in thick skin, flattened and fillid with eleidin), stratum granulosum (begins process of keratinization), stratum spinosum (epidermal dendritic cells (langerhans cells) for immune defense; divide into specialized keratinocytes, spiny attaching), and stratum basale (where melanocytes and tactile cells are found); keratinocytes are the most abundant and are found in all layers |
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Term
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Definition
| determined by factors such as hemoglobin, melanin, and carotene |
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Term
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Definition
| Nevus/mole or birth mark (after or before birth--overgrowth of melanocytes); Freckles--periodic excessive activity of melanocytes; hemangioma--congenital anomaly; friction ridges--large folds and valleys of dermis/epidermis (finger prints) |
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Term
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Definition
| Connective tissue, made of papillary layer (areolar CT) and reticular layer (dense irregular CT) |
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Term
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Definition
| stretch marks; torn collagen |
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Term
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Definition
| Skin does not snap back into place (decreased flexibility and thickness of the dermis); caused by age and UV exposure |
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Term
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Definition
| orientation of collagen bundles (little scarring if parallel (plastic surgeon), huge if perpindicular (normal surgeon) |
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Term
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Definition
| Areolar and adipose connective tissue; anchors skin to underlying structures and allows skin to slide freely; thicker in woman; NOT PART OF INTEGUMENT |
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Term
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Definition
| Review slide #30--know labels |
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Term
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Definition
| hair type; fine downy hair of the fetus |
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Term
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Definition
| Fine hair on arms and legs |
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Term
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Definition
| course hair on head and in pubic region/men's facial hair |
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Term
| Location/Function of Hair: |
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Definition
| Hair can be found everywhere but palms/soles, lips, sides of fingers/toes, and parts of the external genitalia; functions to protect from sun, sensation, and reduces heat loss |
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Term
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Definition
| consists of root and shaft; arrector pilli muscle attaches; rate of hair growth about 2mm a week, with an active phase and dormant phase |
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Term
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Definition
| Alopecia (chunks), diffuse hair loss (everywhere), and male pattern baldness (due to testosterone, vellus replaces termina) |
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Term
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Definition
| oil--holocrine type; occur every on body but palms and feet; produce sebum as lubricant; ball against hair |
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Term
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Definition
| sweat--merocine (most numerous, has long duct) and apocrine (confined to axillary, nipple, anal and genital areas, viscous sweat)--duct follows hair |
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Term
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Definition
| 1st = damages epidermis; 2nd = damages epidermis and part of dermis; 3rd = damages entire epidermis and dermis (possibly hypodermis) |
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Term
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Definition
| Basal Cell Carcinoma (most common type, least dangerous, stratum basale), Squamous Cell Carcinoma (arises from keratinocytes), and Malignant Mealanoma (most deadly, arises from melanocytes) |
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Term
| ABCD rules of MM detection |
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Definition
| A: Assymmetry, B: Border, C: Color, and D: Diameter |
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