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Chapter 5
Integumentary System Skin Disorders and Cancers
| Term | Definition |
|---|---|
| Functions of the skin | Protection from the environment, regulate water loss, eliminate excess water and waste, produce vitamin D, and gather sensory information. |
| Rickets | A disease that causes weak bones that may even bow. Rickets is caused by a lack of vitamin D which leads to a reduction in calcium absorption. |
| Hyperthermia | A body temperature that is above normal. |
| Hypothermia | A body temperature below normal. |
| Athletes foot | A fungal infection |
| Eczema | Inflammation of the skin caused by various environmental stimuli. |
| Dandruff | Accelerated keratinization of the scalp that causes itching and flaking of skin. |
| Urticaria (Hives) | An allergic reaction that is typically characterized by red elevated patches of skin that often itch. |
| Basal Cell Carcinoma | The most common type of skin cancer caused by ultraviolet radiation, like those found in tanning beds or from the sun. A small tumor develops, fortunately this is easy to identify and 95% of patients are cured. |
| Squamous Cell Carcinoma | A type of cancer found in the epidermis caused by excessive UV radiation. Tumors may appear warty, bleed frequently, and do not heal. |
| Melanoma | A type of cancer that is likely malignant. Results from excessive UV radiation and is characterized by unusual looking moles. This is the most dangerous skin cancer. |