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Integumentary System
| Q&A | Term & Definition |
|---|---|
| Skin | Largest organ of the body |
| Accessory Organs | - Hair - Nails |
| Viscera | The internal Organs |
| What are the 3 layers of skin? | - Epidermis - Dermis - Hypodermis |
| What is the deepest layer of skin? | The Hypodermis (Subcutaneous layer) |
| What is the thickest layer of skin? | The Dermis |
| What is the outermost layer of skin? | The Epidermis |
| Stratum Corneum | Hard outermost layer of epidermis |
| Stratum Basale | Produces new cells of epidermis |
| Langerhan Cells | Immunity |
| Melanocytes | makes pigment to give skin color |
| Keratin | helps form hair, nails, and your skin's outer layer |
| Dermal Papillae | ridges that cause fingerprints and provide gripping surface |
| Collagen and Elastic fibers | stretching and movement |
| Adipose Tissue | store energy, insulate body heat, and provides protective padding |
| The 5 functions of the skin | - Protection - Keratinization - Produces Vitamin D -Gathers sensory Information -Regulates body temperature |
| Keratinization | prevents water from entering or leaving the skin, even when immersed in water |
| Purpose of Vitamin D | helps regulate the uptake of calcium by the digestive system |
| Purpose of receptors? | They specialize in sensing. touch, pain, pressure, and temperature (hot & cold) |
| Normal Body Temperature | 98.6 degrees |
| What are the signs of a hot body? | the skin will release the heat |
| What are the signs of a cold body? | The body will create goosebumps and shivering |
| Hypothermia | lower body temperature than normal |
| Hyperthermia | Higher body temperature than normal |