Name some factors that can determine the average rate of cell turnover.
Age, sun exposure, use of exfoliating agents, treatments and skin conditions.
What is the difference between chemical and mechanical exfoliation?
Manual exfoliation involves physically manipulating the skin with a product like a scrub. Chemical exfoliation is the process of using ensymes or AHAs to casue a chemical reaction to remove dead skin cells.
What is transdermal penetration?
The process of molecules passing through the skin via the epidermis
What are the 4 primary ways that products are absorbed into the skin?
Through the pores. Through the hair follicles. Through the intercellular cement. Through the sebaceous and sudoriferous glands.
Substances that binds and adds structural strength to the skin. Mediates biochemical reactions between the cells.
Name 6 factors that can affect skin absorption.
Condition of the stratum corneum (thoughest outside layer of the epidermis) Hydration level Oiliness of the skin Size of the products molecules Temperature of the skin Size of the pores.
Result of a lesion the extends into the dermis or deeper.
Solid formation above the skin often caused my an insect bite or allergic reaction.
Small elevation of the skin that does not contain pus.
Next progression from Papule. Inflamed bump containing bacterial fluid and pus.
Abnormal membranous sac containing a gaseous, liquid or semi-solid substance.
What is an allergic reaction charaterized by a eruption of wheals?
Pathogenic bacteria or virus entering the body or skin and multiplying to a point where it interferes with the body's normal state.
Highly contagious viral infection. Produces eruptive, blister-like clusters that are typically found on the mucous membranes or skin around the mouth, nose or genitals.
Condition caused my excess secretion of the sebaceous glands.
What is a more severe form of rosacea called?
A chronic inflammatory disorder of the sebaceous glands.
AKA open comedo. Open follice with a black surface plug that has been discolored due to the sebum's exposure to oxygen.
AKA closed comedo. Plugged sebaceous gland without a widely dialted opening.
What is the most severe type of acne?
What's another name for milia?
Foul smelling perspiration caused by bacteria and yeast that break down the sweat on the surface of the skin.
Acute burning, itching rash casued my excessive heat. A disorder of the sudoriferous glands.
A pigmentation disorder. Results in the failure of the skin to produce melanin.
A birthmark or congenital mole.
What is the difference between intrinsic and extrinsic aging?
Intrinsic is the natural aging process. Extrinsic aging is caused by external factors like smoking, drinking and enviroment.
What's the number one factor contributing to extrinsic aging?