blood composition 2- leukocytes & other cells

neutrophils

most abundent leukocyte, phagocytic, usually the first to encounter an antigen (can eat up to 20) granular?

natural killer cells

large granular lymphocytes that live in the lymph nodes that target infected or cancerous cells, induces apoptosis and inflammation

apoptosis

cell suicide

mast cells

leukocytes found in the tissues next to blood cells that release histamine to stimulate inflammation, can be apart of the allergic response

eosinophils

leukocyte involved in the allergic response, 2-4% of blood

basophils

leukocyte involved in inflammation & allergies, <1% of blood

monocytes

leukocyte that is a precursor to macrophages (needs to grow and increase lysosomes and mitochondria to transition)

macrophage

leukocyte involved in the clean up of the antigen attack, can eat ab 100 bacteria, can respiratory burst (free radicals, bleach, & H2O2)

antigen presenting cell (APC)

immune cell that displays antigens on its surface, enabling T cells to perform immune response

dendritic cell

leukocyte called the “mobile watchmen”, catches antigens and migrates to lymph nodes, presents the antigens to lymphocytes—found in skin and other boundary locations

platelets

fragments of cells that play a very important role in blood clotting