Immunity and Feedback Mechanism Flashcards
Defense against disease
causing substances
ANIMAL IMMUNITY
Also called immunoglobulin
ANTIBODY
Refers to any process that living things use to actively maintain fairly stable conditions necessary for survival.
HOMEOSTASIS
Counteract changes of various properties from their target values, known as set points.
NEGATIVE FEEDBACK LOOPS
Involves lymphocytes produced by the bone marrow
ACQUIRED IMMUNITY
- Skin and mucous membrane
- acidic pH
- lysozyme in sweat and tears
- Mucus
First line
It amplifies their initiating stimuli, in other words, they move the system away from its starting state.
POSITIVE FEEDBACK LOOPS
It processes information/ directs an organ/ tissue to perform a corrective mechanism
Control center
Organ/ tissue that will perform the corrective mechanism
Effector
It is the receiver of stimulus
Receptor
Non-specific response
INNATE IMMUNITY
Innate Immunity involves
- Skin and mucous membrane
- Macrophages
- Phagocytic
Highly specific
ACQUIRED IMMUNITY
Developed after exposure to pathogens
ACQUIRED IMMUNITY
- (usually by) phagocytosis
- Inflammatory response
- Higher blood temperature
(fever)
Chemical defense
With the help of antibodies, body detects a foreign body
through their antigen.
Acquired/Adaptive Immunity
will “attack” a specific invader previously identified
B cells
Attack infected cells by:
- Phagocytosis
- Injecting perforins
T cells
Major types
Killer T
Helper T
Suppressor T
A protective protein produced by the immune system in response to the presence of a foreign substance, called an
antigen
from the Greek words meaning - “same” and “steady“
Homeostasis
MHC
Major histocompatibility complex
HLA
Human leukocyte antigen
includes all organs and their secretions
Physical barriers
