Lymphatic system Flashcards
What is the function of the lymphatic system?
Fluid balance
Lipid absorption
Defense
What is the lymphatic system?
a vast collection of cells and biochemicals that travel in the lymphatic vessels, organs and glands that produce lymph.
Which organs are included in the lympathic system?
Thymus
Spleen
What is the function of non-specific response?
They function the same way regardless what kind of pathogen or the number of exposures elicits the same type of response/mechanism
Name the 7 non-specific defenses?
Mechanical barrier Chemical barrier Natural killer cells Species resistance Inflammation Fever Phatgocytosis
Which are the mechanical barriers of the non-specificresponse?
Skin and mucus lining
Which are the chemical barriers?
Enzymes
Interferons
Complement
What is the function of phagocytosis?
The process removes foreign particles from the lymph as it moves from the intestinal spaces to the bloodstream.
Which 2 substences are attracted by chemicals released by injured tissues (phagocytosis)?
neutrophils and monocytes
What is the function of neutrophils?
engulf and digest smaller particles
What is the function of monocytes?
phagocytize large particles
Which substance produces lymphotytes in presense of viral or bacterial infection? (fever)
interleukin-1
What is the function of interleukin-1?
raises the thermoregulatory set point in the brain´s hypothalamus to remain a higher body temperature
What is the function of vaccines?
induce long-term immunity to specific pathogenic infections by stimulating the production of memory cells
Does allergic reaction cause immune responce?
Yes
What is an allergen?
a harmless substance and can damage tissues by activating a immune response
Which substanses are produced when IgE is found in the blood?
Histamine
Prostaglandine D2
Leukotrines
What is the name of the immunoglobulin at a allergic reaction?
IgE
What is transplant and reaction syndrom?
It occures when a person had tissue of organ transplantation and the immune system thinks it is non-self and tries to destroy it due to different antigens
Is AIDS or HIV the virus?
HIV (human immunodeficiency virus)
Which cells does HIV effect?
T-cells
