MCAT The Immune System MCAT correctly answered to pass

The Immune System MCATinnate immunity - correct answer -composed of defenses that are always active but unable to target specific invaders -nonspecific immunity adaptive immunity - correct answer -specific immunity -targets a specific pathogen -slower to attack but retains memory of pathogens bone marrow - correct answer -produces all leukocytes(white blood cells) that participate in the immune system spleen - correct answer -location of blood storage and activation of B-cells, which turn into plasma cells to produce antibodies for adaptive immunity humoral immunity - correct answer the division of adaptive immunity in the blood rather than cells T-cells - correct answer -mature in thymus, small gland in front of the pericardium (sac that protects the heart) -T-cells coordinate the immune system and directly kill viral infected cells Lymph nodes - correct answer -provide a place for immune cells to communicate and mount an attack Gut-associated lymphoid tissue - correct answer -immune tissue associated with the digestive system -includes tonsils and adenoids, Peyer's Patches and lymphoid aggregates in the appendix Leukocytes - correct answer -produced in bone marrow through hematopoiesis