Let
discovered the first antibiotic
Alexander Flemming
special protection of the body against disease
immunity
defense that is also called an immune response
specific defense
part of the body's specific defense that includes the tonsils, appendix, and spleen
lymphatic system
largest known pathogens
protozoans
one of the first to identify that diseases are caused by microorganisms
Louis Pasteur
the body's specific defense against disease
immune response
an increase in white blood cells that attack pathogens and prevent infection (a defense)
nonspecific defense
was a pathogen can be spread
air, contact, vectors, contaminated food/water
special proteins made by white blood cells that can destroy pathogens
antibodies
Anything that can cause a disease
pathogen
Chemicals made by microorganisms to destroy other microorganisms
antibiotics
a defense that identifies and fights pathogens using the lymphatic system
specific defense
what is an autoimmune disease?
malfunction of the body where it attacks the healthy cells
a type of white blood cell that can surround and eat a pathogen
macrophage
anything that can cause an allergic reaction
allergen
scientist who studies the causes and spread of diseases
epidemiologist
type of immunity a person can get by either having had a disease or getting vaccinated
active immunity
give two examples of an autoimmune disease
MS, rheumatoid arthritis
name 5 defensive barriers of your body and what they protect
1. scabs- wounds
2. sweat, oils- skin
3. tears- eyes
4. hydrochloric acid- stomach
5. earwax- ears
6. mucous membranes, cilia- air passages
contains dead or weakened pathogens to provide immunity against disease
vaccine
An inflammatory response (defense) that may cause redness, swelling, heat, and pain
nonspecific defense
type of immunity that a baby has before his immune system can produce its own antibodies
passive immunity
what is the purpose of defensive barriers?
to keep pathogens out of the body
Why should medical workers be very careful to label blood types on donated blood?
donated blood is accepted by the immune system only if the blood types match