Integ System Flashcards
(23 cards)
The study of the functions of skin tissue
Skin physiology
Soft Moist Flexible Even in pigmentation Free of disease What are these characteristics of?
Healthy skin
What is PASSER?
Protection Absorption Secretion Sensation Excretion Regulation of temperature
Protects the body from UV radiation
Melanin
Chemical barrier on surface of the skin
Acid mantle
Touch Heat Pain Cold Pressure What are these responding to?
Sensory nerve endings in the dermis
The study of the structure and composition of skin tissue
Skin histology
What type of sunscreen absorbs and traps UV radiation?
Chemical sunscreen
Works immediately after application to reflect or scatter the Suns uv radiation.
Physical
TEWL?
Transepidermal water loss
The only mitotic layer of the epidermis
Stratum germinativum
The epidermis is made up of mostly what?
Dead skin cells
What is avascular?
No blood vessels
What does the basement membrane do?
Transports nutrients from the vascular dermis to the avascular epidermis
The 28 day Upward migration from the stratum germinativum to the stratum corneum
The keratinization process
What does the arrector pili muscles do?
Muscle responsible for goose bumps
The longest Ray that penetrates deep into the dermis
UVA sun Ray
Second longest Ray that penetrates into the epidermis
UVB sun Ray
Protects the body from UV radiation
Melanin
What is the chemical on top of the skin
Acid mantle
Pigment that is produced by the melanocyte it gives us our skin color
Melanin
What is Melanogenesis?
Process by which melanin is produced
What is a melanosome?
Organelle found within the melanocyte