Integumentary System Flashcards
Integumentary System
Hair, Skin, Nails
Protection
Protects the rest of the body from the elements
Sensory Function
The hair and sensory nerve structures on the skin
Thermoregulation
Helps regulate body temperature
Vitamin D Synthesis
Obtains Vitamin D through UV Radiation
Keratinocyte
Cells in all layers besides basale. Contains keratin
Keratin
The main structural component of hair and nails.
Thick skin
Only on the palms of the hands and soles of the feet
Thin Skin
Layers 1, 3, 4, 5
Epidermis
The surface layer of the skin above the dermis
Dermis
The layer below the epidermis containing blood, nerves, sweat glands, and hair follicles
Hypodermis
the deepest layer of skin
Stratum Corneum
The outermost layer of the epidermis
Stratum Lucidum
A translucent layer of cells
Stratum Granulosum
granular nondividing cells
Stratum Spinosum
spiny cells that contain keratin