Flashcards in 2nd Quarter- MICROBIOLOGY Exam 3 Deck (97)
inhibits microorganisms from entering the body
Mechanical Defenses (Anatomical barriers)
types of anatomical barriers
skin, mucous membranes - soft moist tissue inside the nose, ear, mouth, and eyes. Bony encasements - skull, ribcage
types of defenses of the body against infection
mechanical, physiological, chemical
functional defenses of the body against infection
types of physiological defenses of the body against infection
inflammation, fever, phagocytosis
the body’s total response to an injury
the substance that stimulates the production that causes a fever. They may come from within or from outside the body. They are literally an agent that causes the body temperature to rise
(white blood cells) scavengers - cell ingestion like pac man.
specific chemical substances found within the body that protect us from infection
useful substance (glands).
types of chemical defenses
body secretions, antibodies, interferon
(type of body secretion)enzymes present in tears, which kill bacteria
(type of body secretion)- (HCL) hydrochloric acid produced within the stomach to kill bacteria
Specific proteins produced by the body in response to a specific foreign protein (antigen) or bacteria
trigger production of antibodes
medical name for antibodies chemical defense against infection.
virus neutralizing substance produced individually by the body cells. Can be enhanced by vaccination
glycoprotein substance developed in response to, and interacting specifically with antigen. Once formed in the body, it will remain forever. It may decrease over the years. Another name is immunogoblin (Ig). They are classified as chemical defenses against specific infection in the body
The study of immunity
a highly developed state of resistance of the body in response to a specific infection or disease.
the absence or suppression of factors responsible for development of immunity.
Characteristics of Antigen
very specific; true. A true antibody is a substance produced by the body and has bivalent receptor sites (two ends) and only formed in response to antigens. A true antibody will have bivalent receptor sites; if incomplete, (only one end) an allergic reaction can occur
kinds of immunity
Natural (innate) immunity
type of immunity that is inborn (at conception, not birth)
natural (innate) immunity
three types of natural (innate) immunity
A type of natural immunity where a particular race is predisposed to a disease
Red Blood Cells are not round but look like a sickle, absence or lack blood
sickle cell anemia
distemper non-human disease
obtained immunity through the natural life process (not born with)