Bacteriology & Infection Control Flashcards
Three classifications of bacteria:
Cocci: round shaped bacteria that appear singly or alone.
Staphylococci: pus forming bacteria that grows in clusters causes abscesses, pustules, and boils.
Streptococci: pus forming bacteria arranged in curved lines. Causing infections such as strep throat and blood poisoning.
Diplococci : spherical bacteria that grow in pairs and cause diseases such as pneumonia.
Bacilli: short rod-shaped bacteria. Produces diseases such as tetanus, typhoid fever, tuberculosis, and diphtheria.
Spirilla: spiral or corkscrew shaped bacteria. Subdivided into sub groups causing Syphilis and Lyme’s disease.
Definition of disease?
An abnormal condition of all or part of the body, or its systems or organs, that makes the body incapable of carrying on normal function.
Indirect transmission
Transmission of blood or body fluids through contact with an intermediate contaminated object such as a razor, extractor, nipper, or an environmental surface.
Direct transmission
Transmission of blood or body fluids through touching, kissing, coughing, sneezing, and talking.
Stages of bacterial growth
Active stage: stage when bacteria grow and reproduce.
*When conditions are favorable, bacteria grow and reproduce. When largest size, they divide into two new cells called binary fission.
Inactive or spore-forming stage:
Bacteria that is able to withstand long periods of famine, dryness, and unsuitable temperatures. Certain bacteria, such as the anthrax and tetanus bacilli coat themselves with wax-like outer shells.
Virus
A parasitic submicroscopic particle that infects and resides in the cells of a biological organism capable of replication only through taking over the gist cells reproductive function. Microscopic caused common colds and respiratory and gastrointestinal infections. Viruses includes, measles, mumps, chickenpox, small pox, rabies, influenza, and HIV.
Fungus
Microscopic plant parasites that include molds, mildews, and yeasts. They can produce contagious diseases such as ring worm.
Parasites
Organisms that grow, feed, and shelter on or in another organism, while contributing nothing to the survival of that organism. Must have a host to survive and can live on or inside of humans and animals.
Immunity
The ability of the body to destroy and resist infection. Immunity against disease can be either natural or acquired.
Four ways a body fights infection?
- Healthy unbroken skin - the body’s first line of defense
- Body secretions, perspiration, and digestive juices.
- White blood cells that destroy bacteria.
- Antitoxins that counteract the toxins.
Benefits of steam?
- Helps stimulate circulation
- softening sebum and other debris
- beneficial for sinuses and congestion
- steamers w/ozone may have antiseptic and antibacterial effect on the skin that is beneficial for acne or problematic skin.
O-zone
O-zone is what is created after a lightening storm and has a distinct smell. Has antiseptic qualities, strong oxidizer that creates free radicals.
Lucas
Used to apply a very fine mist of plant extracts, herb teas, fresheners, or astringents. Excellent for treating dehydrated, mature, and coupe rose skins. Increases blood flow.
*invented by Dr. Lucas Championniere
Hair Growth Cycles
Hair growth is a result of the activity of cells found in the basal layer. These cells are found within the hair bulb. Hair growth occurs in three stages: Anagen, Catagen, Telogen, and Latent.
Anagen phase: the growth stage during which new hair is produced. New keratinized cells are manufactured in the hair follicle during the Anagen stage. Activity is greater in the hair bulb, which pushed down into the dermis and swells with cell mitosis in the matrix. Stem cells at the junction between the arrector pili muscle and the follicle grow downward and stimulate cell mitosis in the matrix. New cells form and hair and root sheaths while the older part of the hair reaches full length, it can remain for weeks/years.
Catagen phase: the transition stage of hair growth. Mitosis ceases. Hair grows upward and detaches itself from the dermal papilla. The follicle degenerates and collapses as epidermal tissue retracts upward. Hair loses its inner tooth sheath and becomes dryer. Shortest part of the gage growth cycle.
Telogen phase: the final or resting stage of hair growth. During the Telogen stage, the club hair moves up the follicle and is ready to shed. Hair is at full size and erect in the follicle showing above skins surface. Hair bulb is not active and hair is released and only attached by epidermal cells. May sit in follicle or fall out.
Latent phase: follicle is empty and dormant. Old hair sheds and the cycle begins again.
Two types of temporary methods of hair removal?
Depilation: a process of removing hair at or near the level of the skin. (Shaving and chemical depilation).
Epilation: the process of removing hair from the bottom of the follicle by breaking contact between the bulb and papilla. The hair is pulled out of the follicle. (Tweeting, wax, and depilatories, and sugaring are all methods of epilation procedure estheticians perform).