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 |