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Chapter 5
Integumentary System
| Word | Definition |
|---|---|
| Integumentary System | skin, hair and nails form |
| Skin | Protection and Excretion are Functions of |
| Skin | Body Temperature Regulation and and Cutaneous Sensation are Functions of |
| Skin | Vitamin D Synthesis and Blood Reservoir and Functions of |
| Physical, Chemical, Biological | 3 Types of Protection |
| Physical | type of protection keeps organisms out |
| Chemical | type of protection kills bacteria with uric acid and prevents Uv damage with melanin |
| Biological | protection that uses langerhans cells |
| Excretion | wastes excrete through sweat |
| Body Temperature Regulation | sweat used for |
| Cutaneous Sensation | Example is sensory receptors that respond to touch and pain |
| Vitamin D Synthesis | From cholestrol absorbs calcium into intestines |
| Blood Reservoir | Holds 5% of bodys blood volume |
| Skin | made up of 2 regions or layers |
| Epidermis and Dermis | Names of the 2 Skin layers |
| Epidermis | thin top layer of skin |
| Epidermis | Layer os skin composed of Stratified Squamous Epithelium |
| Keratin | Most epidermal cells made of |
| Keratin | waterproofing protein |
| Dermis | deepest layer of skin |
| Dermis | layer os skin composed of melanocytes and langerhans cells |
| Epidermis | consists of 5 layers or strata |
| stratum basale | deepest layer of epidermis |
| stratum spinosum | prickly layer of epidermis |
| stratum granulosum | granular layer of epidermis |
| stratum lucidum | clear layer of epidermis |
| stratum corneum | horny layer of epidermis |
| Dermis | composed of dense irregular CT |
| Dermis | consists of 2 layers or strata |
| Papillary | layer where fingerprints are formed |
| Reticular | layer makes up 80% of Dermis, where wrinkles form |
| Hypodermis | Superficial Fascia aka |
| Hypodermis | where fat lies not part of skin |
| Skin Color | clinically important in indicating disease or emotional state |
| Skin Color Pigments | melanin, carotene.hemoglobin |
| Melanin | reddish-brown/black exp. moles |
| Carotene | yellowish-orange exp. heels |
| Hemoglobin | pinkish exp. shows through light skin |
| Erythema | redness due to fever, hypertension, inflammation or allergy |
| Pallor | paleness due to anemia, hypotension. surgery |
| Jaundice | yellowness due to liver disorder or failure |
| Bronzing | metallicness due to Addisons Disease-Adrenal |
| Blue/Black | colored bruises due to vit C deficiency or falls |
| Cyanosis | Blue due to oxygen deficiency, heart failure, resp disorders |
| Skin Cancer | commonly caused by exposure to UV rays |
| Assymetry | ABCD Rule- sides don't match |
| Border | ABCD Rule- Irregular |
| Color | ABCD Rule- Red, blue, black |
| Diameter | ABCD Rule- bigger than 10mm |
| Types of Skin Cancer | Basal Cell Carcinoma, Squamous Cell Carcinoma, Melanoma |
| Basal Cell Carcinoma | most common and least malignant skin cancer |
| Squamous Cell Carcinoma | skin cancer that grows rapidly, successfully removed if caught early |
| Melanoma | least common and most dangerous type of skin cancer |
| Regeneration | process by which damaged tissues repair themselves |
| Fibrosis | Process of repair through scar tissue |
| Skin Repair | Inflamation, Organization, and Regeneration are steps of |
Created by:
schell912
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