NURS 3120 Lecture Notes - Lecture 3: Jaundice, Itch, Body Odor
Document Summary
Sweat & sebaceous glands: our skin is a body organ, structurally intact covers entire body, our skin protects us and our internal organs, produces vitamin d, regulates our temperature, assists with body fluid & electrolyte balancing. 3 layers of skin: epidermis: outermost layer, is avascular, new cells push old cells up to skin surface where keratinization occurs (cells die, making them hard & waterproof, dermis: very vascular! Dermal blood supply feeds epidermis, contains the nerves for touch/pain/temperature & allows our skin to stretch or contract with movement or changes in temperature: sq/hypodermis: this layer supports our epidermis & dermis. Composed of loose connective tissue with sq fat. Our fatty cells assist us with heat retainment, as a cushion and caloric source. Hair: developed from epidermal cells in dermis, has a root, shaft & follicle, our melanocytes provide the color of our hair.
