lymphatic organs
which organ shrinks by the time we reach puberty?
Thymus
Enzymes in body fluids provide a chemical barrier to pathogens are?
Chemical barriers
what is the name of the fluid in the lymphatic capillary fluid?
LYMPH
what organ breaks down worn-out red blood cells?
Spleen
which defense, Defends against viruses and cancer cells by secreting cytolytic substances called perforins that lyse cell membrane
NK cells
define edema.
edema is the accumulation of interstitial fluid in the tissue.
which organs contain lymphocytes to attack bacteria, viruses, and parasitic cells?
lymph nodes?
what defense Removes foreign particles from the lymph?
Phagocytosis
what kind of pressure is inside lymph vessels?
low hydrostatic pressure
Which accessory organ is responsible for the absorption, in the small intestine and delivery to the bloodstream?
lymphatic capillaries
Which defense begins when a viral or bacterial infection stimulates lymphocytes to proliferate, producing cells that secrete a substance called interleukin-1
fever
what are antibodies?
globular,Y-shaped proteins, composed of 4 amino acid chains: 2 heavy and 2 light chains
lymph fluid accumulates in the....?
Lymphatic collecting ducts
what is a mechanical barrier?
Considered the first line of defense, Skin and mucous membranes form mechanical barriers
DOUBLE POINTS
what is the order of the lymphatic pathway?
lymphatic capillary> afferent lymphatic vessel> lymph node> Efferent lymphatic vessel>lymphatic trunk> Collecting duct