Lymphatic System & Immunity Flashcards
Important for the protection if the body, and also carries out other functions
Lymphatic System
Lymphatic System includes___?
Lymph, Spleen, Lymphatic Vessels, Lymph Nodes, Tonsils, and Thymus
Some fluids moves from the tissue spaces into____ to become lymphs
Lymphatic Capillaries
Resembles small veins; its compression causes lymph to move forward
Lymphatic Vessels
Three groups of Tonsils
Palatine, Pharyngeal and Lingual Tonsil
Loc. on each side of the posterior opening of the oral cavity; commonly referred as “tonsils”
Palatine Tonsils
Loc. near the internal opening of the nasal cavity
Pharyngeal Cavity
Posterior to the tongue’s surface
Lingual Tonsils
Roughly the size of a clenched fist
Spleen
Bilobed gland roughly triangular in shape
Thymus
Ability to resist damage from pathogens
Immunity
Nonspecific resistance; body recognizes and destroys certain pathogens, but response is the same
Innate Immunity
Specific Immunity; body recognizes and destroys pathogens, response improves each time the pathogen is encountered
Adaptive Immunity
Ability to recognize a particular substance
Specificity
Ability of adaptive immunity to “remember” previous encounters with a particular sunstance
Memory
Prevents pathogens and chemicals from entering from enetring the body in two days
Physical Barriers
Molecules responsible for many aspects of iinate immunity
Chemical Mediators
Proteins that protect the body against viral infections
Interferons
Accumulation of fluid, dead neutrophils, and other cells at a site of infection
Pus
An inflammation response confined to a soecific area of the body
Local Inflammation
An inflammatory response taht is generally distributed throughout the body
Systemic Inflammation
Sunstances that stimulate adaptive immune response
Antigens
Antigens introduced from outside the body
Foreign Antigens
Molecules produced by body cells to identify them as “self” part of the body
Self-antigens
Results when an individual is exposed to an antigen and their immune system’s response is the cause of immunity
Active Immunity
Occurs when another person develops immunity and it’s transferred toa non immune individual
Passive Immunity
Antigen is deliberately introduced into an individual to stimulate the immune system
Active Artificial Immunity
When antibodies are transferred from mother to child
Passive Natural Immunity
Results from natural exposure to an antigen, that stimulates the immune system to respond against the antigen
Active Natural Immunity
Involves the collecting of antibodies from one source and introducing them to an infected individual
Passive Artificial Immunity
