Blood Flashcards
Red blood cells
erythrocytes, contain hemoglobin (gas exchange)
White blood cells
leukocytes, immune response
Platelets
Thrombocytes, blood clotting
Granulocytes
neutrophils, eosinophils, basophils
Agranulocytes
monocyte, lymphocyte
Neutrophils
Abundance: 40-70% Function: phagocytize foreign material, can leave blood and go into tissue structure: 2x size of RBC -bands: immature neutrophil, “band” of nuclei (unsegmented) -segs: mature neutrophils, nuclei are segmented into 2-5 lobes increased during bacterial and fungal infections
Eosinophils
Abundance: 1-5% Function: phagocytic, function in parasitic infections (protozoa, helminths0 Structure: 2x size of RBC -2 lobed nucleus, red/organce cytoplasmic granules Increased: during parasitic infections, severe allergies
Basophils
Abundance: >1% Function: unknown, participate for an allergy response (produce histamine/heparin) Structure; 2x RBC -dark cytoplasmic granules -1-2 lobe nucelus (if seen) Increased: allergic response
Monocytes
Abundance: 2-6% Function: can migrate into tissue–> macrophage when mature (phagocytic) can be seen an antigen presenting cell Structure: 2-4X RBC, bean shaped nucleus, no granules Increased: viral infections
Lymphocytes
Abundance: 25-40% Function: adaptive immunity -T cells: cell mediated immunity -B cells: can become plasma cells: produce antibodies -Natural Killer cells: non-specific, kill foreign and infected cells Structure: 1-2x RBC -spherical nucleus that takes up most of the cell increased: Viral infections
Neutrophil
Eosinophil
Basophil
Monocyte
Lymphocyte