Unit 11 Immune System Flashcards
Resistance is the ability to avoid _____
Disiease
Susceptibility is the lack of _____
Resistance
Molecules (molecular effectors) in the immune system include what 4 things?
- T-cell receptors
- Antibodies
- Complement
- Others
Cells (Cellular effectors) in the immune system include what 4 things?
- T-cells
- B-cells
- Macrophages
- Other
External harm from ____ and ____ continuosly threaten.
- Injury
2. Infection
____ results in damaged tissues to allow disease causing agents to enter the body.
Injury
_____ is the presence of germs which may lead to disease.
Infection
____ is not the same as disease.
Infection
Infection is the presence of ____ which may lead to disease.
Germs
____ are the germs (infectious agents, pathogens)
Antigens
____ prevent the entrance of AG and include what 4 things?
Barriers
- Skin
- Mucus Membranes
- Cilia
- Acid
An immune response is a reaction between the _____ and _____
Immune system; Antigen
The immune response will ____ and _____ the AG
Neutralize; Destroy
______ is a lack of IR to host cells which develops before _____
Immune tolerance; birth
Non-specific immunity(also called resistance) has two major characterstics:
- Functions against variety of AG
2. Roughly mediated by myeloid cells
Examples of non-specific immunity include what two things?
- Barriers
2. Fever
Fever functions to ____ metabolism of IS and ____ reproduction of microorganisms
Increase; decrease
Fever is caused by setting the _________ to a higher temperature
Hypothalamic thermostat
Fever is mediated by _____ released in the brain
Prostoglandins
Prostaglandins also function to _____ pain and ______ pyrogen release from WBC
Increase; Increase
Synthesis of prostaglandin is decreased by ____
Aspirin
Fever is also mediated by _______
Endogenous pyrogens
Endogenous pyrogens are released from ____ and ____
Monocytes; MP
Examples of endogeous pyrogens are:
Interleukin 1; Other Peptides
The symptoms of inflammation are:
- Pain
- Redness
- Swelling (Edema)
- Heat
- Increased numbers of WBC
The function of inflammation includes the transport ____ to site and _____ of AG
Defenses; Destruction
The steps of inflammation are:
- Vasodilation
- Increase vessel permeability
- Prevention of clotting in site
- Formation of clot around site which prevents the spread of MO
- Movement out of vessels
- Phagocytosis