| Term | Definition |
| 5 Functions of Integumentary System | 1. Protection
2. Regulation
3. Sensation
4. Absorption
5. Secretion |
| 3 layers of skin | 1. Epidermis
2. Dermis
3. Subcutaneous Layer |
| Epidermis | -4 layers
-contains melanin which gives skin its color |
| melanin | gives skin its color |
| 4 layers of Epidermis | 1. stratum corneum
2. stratum lucidum
3. stratum granulosum
4. stratum germinativum |
| Dermis | -"true skin"
-contains dermal papillae aka fingerprints
-2 layers |
| 2 layers of Dermis | 1. Papillary
2. Reticular |
| shaft | visible portion of the hair |
| papillae | found at the base of the hair follicle |
| nail | consists of body, root and matrix (nail bed) |
| lunula | crescent-shaped white area at base of nail |
| matrix of nail | nail bed |
| sebaceous glands | -located in the dermis
-secrete sebum |
| sudoriferous glands | secrete perspiration |
| skin cancer | most common of all cancers |
| malignant | cancerous tumor |
| basal cell carcinoma | most common form of skin cancer |
| location of skin cancer | -nose is most common
-also occurs on head, neck, back, chest and shoulders |
| squamous cell carcinoma | malignant tumor that affects the middle layer of the skin |
| malignant melanoma | -originates in the melanin-producing melanocytes
-often occurs in the melanocytes of a pre-existing mole |
| ABCDE Rule | Diagnostic tool for malignant melanomas |
| acne vulgaris | -most often affects teens
-severity of the acne determines the most useful and beneficial treatment |
| alopecia | -baldness or loss of hair
-most common is male-pattern baldness |
| cellulitis | acute, spreading bacterial infection below surface of the skin |
| contact dermatitis | -allergic reaction
-poison oak for example |
| decubitus ulcer | -pressure sore or bedsore
-common location is coccyx
-4 stages I-4 (most severe) |
| eczema | atopic dermatitis |
| Herpes Zoster | -aka shingles
-viral infection that causes a painful rash that is also responsible for chicken pox
-painful, fluid-filled blisters
-treated with oral anti-viral meds |
| hirsutism | thick abnormal hair growth |
