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Skin
| Term | Definition |
|---|---|
| Integument | means SKIN |
| Epidermis | thin, outer layer of the Cutaneous Membrane |
| Dermis | thicker layer of the cutaneous membrane |
| Subcutaneous Layer | AKA Hypodermis or Superficial Fascia |
| Keratinocytes | makes up 90% of cells consist of protein Keratin |
| Melanocytes | contains the pigment melanin |
| Melanin | contributes to skin color and protects from UV light |
| Strata | layers of the epidermis |
| Stratum Corneum | most superficial layer of the epidermis |
| Stratum Corneum | epidermal layer consisting of dead cells |
| Stratum Lucidum | epidermal layer, present only in thick skin |
| Stratum Lucidum | epidermal layer that blocks water penetration or loss |
| Stratum Granulosum | epidermal layer where cells have started to degenerate |
| Stratum Spinosum | epidermal layer, cells full of RNA undergoing translation to produce keratin |
| Stratum Basale | epidermal layer, which undergoes mitosis |
| Stratum Germinativum | combined layers of the stratum spinosum and stratum basale |
| Hyperkeratosis | the over growth of the stratum corneum |
| Fissure | a tear in the skin |
| Wrinkled fingers/toes | the expansion of the dead cells of the stratum corneum due to absorption of water. |
| Blister | result from injury to the cells of the dermal-epidermal junction |
| Regeneration Time | period required for a population of cells to mature and reproduce |
| 35 days | amount of time it takes for regeneration time |
| Dermis | identified as true skin |
| Papillary layer | thin layer of the dermis |
| Reticular layer | thick layer of the dermis |
| Papillary layer | layer of the dermis that creates finger/foot prints |