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 |