What is the function of the skin?
To keep bacteria and viruses out of the blood stream
What is the
The outer layers of the skin taken together.
True or false. Melanocytes are immobile.
False. They are motile.
Melanocytes create what pigment?
Where do Melanocytes congregate?
In hair follicles
What happens to Melanocytes when you get older?
Melanocytes' motility and productivity decrease
What happens to the skin when it is exposed to UVB?
The Melanocytes start producing Melanin and start moving to the surface of the skin.
Tanning is an injury response.
What does Melanin due?
What is the
The inner layer of the skin taken together
What are the
in the skin?
Immune System cells
True or false. Langerhan's Cells are Macrophages.
What is the last line of defense before bacteria or viruses get into the blood stream?
Langerhan's Cells / Macrophages
What protects us from skin cancer?
The elastic fibers located between the Epidermis and the Dermis that keep the skin tight
As you get older, what happens to collagen?
The Collagen Fibers break down and wrinkles form
Which UV radiation type is aka "Tanning Ray"?
Which UV radiation type is aka "Burning Ray" ?
What is the relationship between UVA and Skin Cancer?
UVA destroys Langerhans' Cells, the cells that protect us from Skin Cancer therefore making us more susceptible to Skin Cancer.
What UV radiation type does cause Skin Cancer?
What are 3 types of Skin Cancer?
Basal Cell Carcinoma
Squamous Cell Carcinoma
Cells break off of the primary tumor and go and make other tumors through out the body
What are the attributes of Basal Cell Carcinoma?
Cancer on the surface of the skin
Starts as a sore red spot and grow into a tumor
Does NOT Metastasize
Generall, not deadly
How do you treat Basal Cell Carcinoma?
Freeze with liquid Nitrogen
Burn the tumor
Surgically remove the tumor
Why is Basal Cell Carcinoma 100% treatably successful?
Because it does not Metastasize
What is the most common type of skin Cancer?
Basal Cell Carcinoma
What are the attributes of Squamous Cell Carcinoma?
Cancer of cells below the dermis
CAN Metastasize, but rare
Less easy to detect
How is Squamous Cell Carcinoma treated?
Surgically remove (most common)
Basal Cell and Squamous Cell Carcinomas are
to which two occupations usually?
Children who get Basal or Squamous Cell Carcinomas are how much more susceptible to getting either/both later?
50% more susceptible
Which of the three skin cancers is
if not treated early?
Malignant Melanoma is cancer of what type of cells in the skin?
What are the attributes of Malignant Melanoma?
Melanocytes grow out of control
because they are naturally motile
What are the symptoms of Malginant Melanoma?
Mole or Freckle that changes color, shape, or bleeds.
Tumor / Cancer cells develop in mole/freckle's blood supply.
Malignant Melanoma is easily detectable in which kind of skin color?
True or false. Malignant Melanoma is more common in people that are out doors normally.
False. Malignant Melanoma is more common in people that are in doors and get extreme sun burns when out doors.
SPF stands for what?
Sun Protection Factor
SPF refers to which kind of UV radiation?
Define 1 hour equivalence
The SPF # represents how many hours the Sun Screen will protect equal to the amount of skin that is exposed to the sun for 1 hour without protection
Proper application requires that you apply the Sun Screen how long before sun exposure?
What is the problem with Water-Proof Sun Screen?
The Nanotechnology that makes Sun Screen water proof may make Sun Screen chemicals more able to get into the blood stream