5 layers of the epidermis
Corneum
Lucidum
Granulosum
Spinousum
Germinativum
7 functions of the skin
Sensation
Heat regulation
Absorption
Protection
Excretion
Secretion
Vitamin D
Where do you find the arrector pili muscle?
Found in the dermis (second layer of skin) and attached to base of each hair follicle
What does the sebaceous gland secrete?
Sebum (oil)
What happens to sebaceous secretions as we get older?
It decreases
What does a sudoriferous gland secrete?
Sweat
Name 2 of the sudoriferous gland and where you would find them?
Approcrine - private parts
Eccrine - everywhere
What is the function of the acid mantle?
Layer of protection
What is the acid mantle made up off?
Sweat, sebum, and water
Where would you find the adipose tissue?
Adipose (fatty cells)
Found in the subcutaneous layer (third layer)
Where do you find melanocytes?
In the germinativum layer
What is the function of melanin?
Pigmentation - UV protection
What are the 2 layers of the dermis and what are they called?
Reticular layer
Papillary layer
Where would you find collagen and elastin fibres?
Collagen - a cell that makes us youth fun
Elastic - makes our skin springy
Found in the dermis
What effects do uv rays have on the skin?
Burns,
develops a tan,
causes redness,
Vasodilation (blood vessels get wide to normalise temperature)
What cells burst to release histamines?
Mast cells
What is the function of histamines?
Injury
Allergy
It’s a defense mechanism
