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Hema part 2
| Question | Answer |
|---|---|
| Red blood cells are the most abundant T/F | True they are the most abundant about 45% |
| How long do blood cells live in dogs? | About 100 days |
| Anemia | Deficiency of red blood cells |
| What does it mean that erythrocytes are anuclear? | without nucleus when mature |
| Reticulocytes | young RBCs that may still contain portions of their rough ER |
| What can cause hemolysis? | Due to poor collection the red blood cells can be damaged or destroyed. |
| Practice: What piece of equipment allows for blood to be spun down into its different components? | Centrifuge |
| Practice: Which blood cells are the most abundant and heavy and settle to the bottom? | Erythrocytes or RBCs |
| Practice: What is it called when erythrocytes are damaged and turn the plasma a red color? | Hemolysis |
| Practice: What are the differences between a new RBC and a mature one? | Young RBCs are bigger, have a nucleus, and may contain portions of their rough ER. |
| What is the role of erythrocytes? | Transports oxygen to tissues of the body |
| What is hemoglobin and where is it found? | It is a protein that is essential for O2 transport and removes CO2 from tissues. It is found in RBCs. |
| Leukocytes information | -Also produced in the bone marrow -Larger than erythrocytes -Plays a role in fighting disease/infection -There are 5 major types -Spend only a portion of their time in bloodstream because the move to tissues to fight infection. |
| Granulocytes | -Neutrophil -Basophil -Eosinophil |
| Agranular | -Monocyte -Lymphocyte |
| Granular leukocyte | A type of white blood cell filled with microscopic granules (tiny sacs) containing enzymes that digest microorganisms. |
| Neutrophils | • Largest portion of leukocytes • Polymorphonuclear (Nucleus takes many shapes) • Rid body of foreign invaders • Contain potent enzymes which give powerful phagocytic capabilities |
| Eosinophils and Basophils | • Polymorphonuclear • Play a role in allergic reactions • Granules in Eosinophils help control inflammation • Granules in Basophils produce histamine and will release them in an allergic reaction! Hence...antihistamines! |
| Monocyte | Largest of the leukocytes Nucleus large and multilobed Both monocytes AND neutrophils can slip THROUGH the blood vessel walls to provide phagocytic services out in the tissues of the body |
| Lymphocytes | -Important for immunity and production of antibodies -Range in size. Younger = bigger. Older = smaller w/ little cytoplasm |
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