Lymphatic System
What are the dense oval groups of lymphatic tissue?
follicles or nodules
What immune cells engulf pathogens?
macrophages
What immune cell produces antibodies?
plasma cell
What cell carries oxygen in the blood?
erythrocyte
What type of blood contains has no antigens on the cell surface?
type O
Where do T cells mature?
thymus
What white blood cell releases inflammatory and antibacterial chemicals?
neutrophil
What antibody binds complement and acts as a receptor on B cells?
IgM
What is the most abundant plasma protein that helps in transport?
albumin
What hormone triggers the development of red blood cells?
erythropoietin
What are the lymphatic capillaries that carry fat?
lacteals
Name an inflammatory chemical
heparin, histamine
What cell triggers clonal selection of a B cell?
helper T
What cell fragments to form platelets?
megakaryocyte
What is the stem cell that gives rise to all blood cells?
hematopoietic stem cell
Which lymphatic organ filters and monitors the blood?
spleen
What protein inserts in the membrane of pathogens and diseased cells, causing them to rupture?
perforin
What protein on the surface of APCs displays bits of pathogens to T cells?
MHC-II
What molecule carries oxygen in the blood? What part of the molecule binds the oxygen?
hemoglobin; iron in heme
Which formed element is involved in blood clotting?
platelet
The right lumbar trunk empties into the ______
cisterna chyli
What is opsonization?
coats antigens to make it easier for macrophages to engulf
How does vaccination work?
build memory B and T cells
Give 2 differences between erythrocytes and other body cells.
amitotic, no nucleus, full of hemoglobin, spectrin
What causes clotting to start?
tissue factor for the extrinsic pathway