Integumentary System Flashcards
Integumentary System
its function is to enclose internal body structures, site of many sensory receptors and vitamin D synthesis
What are the 4 function?
Protection, sensory, function, thermoregulation, vitamin D synthesis
What are the skins three main layers?
Epidermis
Dermis
Hypodermis
What are the types o skin?
Thin and thick
Keratinocyte
A cell that manufactures and stores the protein keratin
Keratin
An intracellular fibrous protein that give hair, nails, and skin their hardness and water resistant properties
Stratum basale
Deepest epidermal layer and attaches epidermis to the basale lamina
Merkel cell
Under the stratum basale. Function as a receptor and is responsible for stimulating sensory nerves
Melanocyte
Also under the stratum basale. A cell that produces the pigment melanin. Give hair and skin color and protects epidermis from UV
Stratum spinosum
Spiny in appearance
Stratum granulosum
Grainy appearance
Stratum lucidum
Smooth, seemingly translucent
Stratum corneum
Most superficial layer of epidermis. Layers of keratinization
Layers from the superficial to deep
Stratum corneum Stratum lucidum Stratum granulosum Stratum spinosum Stratum basale
come lets get sun burnt
Hair
Keratinous filament growing out of the epidermis. Provides warmth and immune defense