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10 Cards in this Set
- Front
- Back
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function of blood
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to carry nutrients to cells and waste products to excretory organs
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Erythrocytes
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-biconcave: dog sheep
-shallow: horse cat -flat: goat pig -shape maintained by spectrin -central pale area and peripheral part has more Hb -all organelles are discarded -anaerobic glycolysis |
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Anisocytosis and poikilocytosis
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ani: variation in size is common in most animal species
poik: variation in shape is common in goat and deer |
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Abnormalities in erythrocytes
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Reticulocytes: immature RBC (indicator of anemia), contain ribosomes/mitochondria
Howell-Jolly: deeply basophilic inclusions, reminants of nucleus Heinz bodies: pale area close to periphery due to hemoglobin oxidation |
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LEUKOCYTES
Neutrophils (Heterophils) |
-Heterochromatic
-segmented nucleus -pale granules -immature ones are called band cells -first line of defense, phagocytosis and destruction -azurophilic/specific granules -30-40% in ruminants, 50% in horse, 60-70% in dog and cat |
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Eosinophils
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-segmented nucleus (less than neutrophil)
-pink granules -cats rod-shaped -parasitic infection, alergic, anaphylatic reactions, inactivates histamine |
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Basophils
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-rare
-mediate inflammatory reaction -have histamine, heparin granules |
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Monocytes
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-largest blood cell
-grayish/foamy vaculated cytoplasm -precursor to macrophage |
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Lymphocytes
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-small and large
-heterochromatic -scant cytoplasm -20-40% dog, cat and horse -50-60% pig -60-70% ruminants |
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Platelets/Thrombocytes
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-discoid, spherical or elongate cytoplasmic fragments
-remain individual -main cell in marrow and breaks off fragments of itself -thrombocytes: nucleated cells in birds, fish, reptiles -proteins are absorbed on thin external coat |
