Leukocytes Flashcards
(6 cards)
Neutrophil
Phagocyte
Found in blood, migrates to tissues during inflammation
(most common leukocyte)
Eosinophil
Works by phagocytosis or by secreting toxic chemicals
Fights off parasites
Found in blood & mucosal surfaces (GI, respiratory, urinary tract)
Monocytes
Circulate in blood until they migrate to a tissue or organ and become a macrophage
(Kidney shaped nucleus!)
Macrophages
Large phagocytes that reside in areas of body at risk of infection (Skin, resp, GI tracts)
Basophils
Secretory cell that secretes:
Heparin - flushes out site of infection
Histamine - causes inflammation to attract infection fighting cells
Lymphocytes
Specific immune response
T- thymus - killer, helper and memory
B - bone marrow - helper, memory and plasma