Biology II - Cardiovascular System: Types of Leukocytes

Biology II

what are the type main types of leukocytes

granulocytes and agranulocytes

what do granulocytes have the agranulocytes do not have

granulocytes have granuals that allow them to digest microorganisms

what are the three types of granulocytes

neutrophils, eosinophils, and basophils

what type of granulocyte is the most numerous

neutrophils

what do neutrophils use to attack and digest and what do they attack and digest

they use phagocytosis to engulf bacteria, AKA they use the granules

what sites do neutrophils go to

inflamed sites

describe the nucleus of a neurophils

multi-lobed

what percent of white blood cells are eosinophils

2-4% of while blood cells

describe the nucleus of an eosinophils cells

two-lobed

how do eosinophils attack and digest and what do they attack and digest

they use enzymes to digest parasitic worms (tapeworms and flukes)

they spill enzymes that attck to the worms and degreade it

how common are basophils

not common, they are the rarest white blood cell

what do basophils cells release and what it is

they release histamine, which is an inflammatory chemical that attracts white blood cells to the site of infection

also dilate blood vessels to get blood to that area

what are the types of agranulocytes

lymphocytes and monocytes

what percentage of white blood cells are lymphocytes

25% of white blood cells

how common are lymphocytes

they are the 2nd most numberous white blood cell

describe the nucleous of a lymphocyte

they have large nuclei that take up most of the cell

where are lymphocytes found

the lymph nodes

lymph nodes swell with infection due to increased production of these cells

what are the two types of lymphocytes

T cells: viruses and tumers

B cells: produce antibodies

how common are monocytes

3-8% of white blood cells

how big are monocytes

they are the largest leukocytes

describe the shape of the nucleus of a monocyte

V-shaped nucleus

what do monocytes become and what it is

they become macrophages, which are phagocytes that engulf viruses and other pathogens