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38 Cards in this Set
- Front
- Back
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the integumentary system is compsed of?
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skin, hair and nails
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what role does skin play a part of?
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homeostasis
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what does the skin do?
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barrier to microorganisms
regulate body temp mantain fluid and elytrolyte balance |
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what are the three distinct layers of skin>?
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fat, dermis, epidermis
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what layer of skin is the innermost
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fat
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this layer of skin lies over muscle and bone, act as heat insulators for the body
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fat cells
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this absorbs shock and protects against mechanical injury by padding internal structures
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fat layer
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a layer of connective tissue that contains no cells is this?
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dermis
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the dermis is composed of _____ and ______ that are interwoven to give the skin flexibility and mechanical strength
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collagen and elastic fibers
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____ increases in areas of tissue injury and helps form scar tissue
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Collagen
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fibroblasts also produce this______ a lubricating materal composed of protein and sugar groups the contribute to mormal suppleness and turgor
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Ground substance
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elasticity of the skin depends on both the ______ and _________ of the __________
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quality , quality, elastic fibers
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the major component of the elastic fiber is?
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elastin
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This layer of skin houses a network of capillaries and lymph vessels where the exchange of oxygen and heat occur
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dermis
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This layer of skin is rich in sensory nerves that transmit the sensation of touch, pressure, temperature, pain and itch
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dermis
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The outter most layer of the skin is
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epidermis
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the protective barrier between the body and noxious stimuli in the environment is this layer
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epidermis
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hair follicles are located in this layer
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dermal
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what is the lunula?
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the white shaped portion of the nial at the lower end of the nail plate
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Is nail growth cyclic or continuous?
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continuous
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Is hair growth cyclic or continuous
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cyclic
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sebaceous glands are located where?
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entire skin surface, except palms of the hand and soles of the feet
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sebaceous glands produce what?
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sebum
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what is sebum and what does it do?
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bacteriostatic, fat containing substance.
It lubes the skin and reduces water loss from skin surfaces |
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what are the 2 types of sweat glands
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eccrine and apocrine
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these glands are odorless, colorless, and are the single most important factor in the regulation of body temp
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eccrine sweat glands
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these glands are in direct contact with the hair follicle
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apocrine sweat gland
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found primarily in the axillae, perineum nipple areolae. the combination of this secretion with bacteria causes body odor
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apocrine sweat gland
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What is the single most important factor leading to degeneration of the skin?
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Sun exposure
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what otc meds can cause skin reactions
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laxatives, antacids, cold remedies
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what type of poor nutrition can delay wound healing?
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protein deficiencies, vitamin defic, obesity
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What are Primary lesions?
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initial reaction to an underlying problem that alters one of the components of the skin
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the nurse assesses each lesion for the floowing characteristics associated with skin cancer
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ABCD
ASYMMETRY OF SHAPE BORDER COLOR DIAMETER GREATER THEN FIVE MM |
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freckles, flat moles
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macules
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elevated, marble like lesions more then 1cm wide and deep
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nodules
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you notice a patients skin is shiny taut and paler then univoled skin. Why?
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edema
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what does circumscribed mean?
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well defined with sharp borders
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how to test for superficial fungal infections
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scraped from skin and into petri dish
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