MODULE#17 Flashcards
Ways in which the body protects itself from pathogens - can be thought of as an army consisting of three lines of defense
HOST DEFENSE MECHANISMS
______ are usually produced in the body in response to the presence of foreign substance. These foreign substances are called ____ because they stimulate the production of specific ____
ANTIBODIES
ANTIGENS
Are general and serve to protect the body against many harmful substances
NONSPECIFIC HOST DEFENSE MECHANISMS
One of the non specific host defenses is the
INNATE or INBORN
First line of defense
SKIN AND MUCOUS MEMBRANES AS PHYSICAL BARRIERS
CELLULAR AND CHEMICAL FACTORS
MICROBIAL ANTAGONISM
Example of nonspecific host defense mechanism
INTACT, UNBROKEN SKIN
STICKY MUCOUS
Sticky mucous contains toxins substances such as
LACTOFERRIN
LACTOPEROXIDASE
LYSOZYME
Serve to remove pathogens from gi tract and urinary tract respectively
PERISTALSIS
URINATION
Considered to be nonspecific host defense mechanism
DIGESTIVE ENZYMES
ACIDITY OF THE STOMACH
ALKALINITY OF THE INTESTINES
When indigenous microflora prevents the establishment of arriving pathogens, it is known as
MICROBIAL ANTAGONISM
Are Proteins produced by some bacteria to kill other bacteria
COLICIN
OTHER BACTERIOCINS
Second line of defense
- TRANSFERRIN
- FEVER
- INTERFERONS
- THE COMPLEMENT SYSTEM
- ACUTE PHASE PROTEINS
- CYTOKINES
- INFLAMMATION
- PHAGOCYTOSIS
Substances that stimulate the production of fever are called
PYROGENIC SUBSTANCES
The four cardinal or main signs and symptoms of inflammation
REDNESS
HEAT
SWELLING (EDEMA)
PAIN
A purulent inflammatory exudate is often referred to as
PUS
