The Skin Flashcards
What is the Latin name for the horny layer and what is it?
Latin name- stratum cornium
Outer most layer of skin
Made up of scale like cells
Continuously desquamating
What is the Latin name for clear layer and what is it?
Latin name-stratum lucidium
Made up of small transparent cells
Light can pass through
Only present in palms of hands and soles of feet
What is the Latin name for granular layer and what is it?
Latin name-granulosome
This layer is Usually 1-3 layers thick
Keritin is produced
What is keriten?
Protein that makes up hair and nails
What is the latin name for prickle layer and what is it?
Latin name- stratum spinosome
Keratin sites
What is the Latin name for basil layer and what is it?
Latin name- stratum germinativum
Contains melanocytes. Cells divide constantly
What are melinin sites?
What give your skin colour (pigmentation)
What order do the sub layers go?
stratum cornium
Stratum lucidium
stratum granulosum
stratum spinosome
stratum germinativum
What are the three main layers of skin and what are they?
Epidermis- outer most later (keeps your body hydrated , protects from harm, contains melanin
Dermis- where the important stuff is (collagen, elastic tissue, nerve endings, hair follicles)
Subcutanious layer- insulatates body , protects your body from harm
What are the sub layers of the dermis?
Papillary - provides nutrients and oxygen.
Reticular- main section of dermis. Gives skin a plump look(collagen), elastin gives the skin elastic properties made up of proteins.
What are free radicles?
Are produced in our body’s when external factors cause damage. They attach the self’s to skin. Can result in aging. Factors-smoking , uv rays.
What is the acid mantle?
A fine slightly acidic film on surface of skin that protects your body from bacteria, viruses and other contaminants that may get into your body’s
What effects your skin?
Uv rays, exercise, medical drugs, sleep patterns, poor water consumption, poor care of skin, hormones, immune system
What are the functions of the skin?
Sensation-5 types of nerve endings within skin to help identify pain, touch, heat, cold and light pressure
Heat regulation- skin helps regulate the body’s temp by sweating to cool down and shivering to warm up
Absorption-absorption of uv rays from the sun synthesises vit D when exposed to uv.
Protection- to much uv light may harm skin. Skin protects itself with pigmentation(tan)
Excretion-waste products and toxics and removed from body through sweat glands
Secretion- sebum and sweat secreted onto skins surface. Sebum keeps skin lubricated and soft. Sweat combines with the sebum to form acid mantel.
