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Unit 11 Blood Review
Unit 11 Blood Test Review A&P
| Question | Answer |
|---|---|
| 2 major components of blood | 55% plasma and 45% formed elements |
| Cells characteristics | formed elements, erythrocytes, leukocytes, platelets.. |
| Fibers characteristics | form from platelets but only from damaged blood vessels |
| Ground Substance characteristics | plasma is the liquid matrix |
| contains proteins that help with osmotic balance | Plasma |
| only formed element that is an actual cell | Leukocyte |
| essential for blood clotting | thrombocyte |
| biconcave disc | erythrocyte |
| fragments of megakaryocytes | thrombocyte |
| 55% of blood is composed of this | Plasma |
| causes blood to change to a scarlet red color when bonded with oxygen | erythrocyte |
| contains hemoglobin | erythrocyte |
| uses chemotaxis and amoeboid motion in tissues | leukocyte |
| solvent for carrying other substances | plasma |
| performs diapedesis | leukocyte |
| produced in red bone marrow | erythrocyte, leukocyte, thrombocyte |
| an elevated number of these indicates infection | leukocyte |
| Hematopoiesis definition | process of creating new blood cells |
| Where does Hematopoiesis take place? | red bone marrow and lymphatic tissue |
| Hematopoiesis: What influences differentiation? | Hormones determine which formed element the stem cell will differentiate into |
| Steps of hemostasis | vascular spasms, platelet plug formation, coagulation |
| Vascular Spasms | Anchored platelets release serotonin. Serotonin causes blood vessel muscles to spasm. Spasms narrow blood vessel, decreasing blood loss. |
| Platelet Plug Formation | Collagen fibers are exposed by a break in a blood vessel. Platelets become "sticky" and cling to fibers. Anchored platelets release chemicals to attract more platelets. Platelets pile up to form a platelet plug. |
| What does the positive or negative sign mean when we are discussing blood types? | Positive means the erythrocytes carry the Rh antigen. Negative means they do NOT carry Rh antigen. |
| How does an improperly matched blood group contribute to transfusion reactions? | Antibodies recognize foreign antigens and attach red blood cells causing agglutination (clumping). Clumps break off and hemoglobin enters blood stream if enough gets ti kidneys- renal failure. |
| Neutrophil | most numerous leukocyte |
| Neutrophil, Eosinophil, Red Blood Cell | Granular Leukocytes |
| red blood cell | also called an erythrocyte; anucleate |
| Monocyte and Neutrophil | actively phagocytic leukocytes |
| Monocyte and Lymphocyte | Agranular leukocytes |
| Megakaryocyte | fragments to form platelets |
| Formed elements | Red Blood Cell, Megakaryocyte, Eosinophil, Basophil, Monocyte, Neutrophil, and Lymphocyte are examples of formed elements |
| Eosinophil | increases during allergy attacks |
| Basophil | releases histamine during inflammatory reactions |
| Lymphocyte | after originating in bone marrow, may be formed in lymphoid tissue |
| Red blood cell | contains hemoglobin |
| Plasma | primarily water, noncellular; the fluid matrix of blood |
| Monocyte | increases in number during prolonged infections |
| Basophil | least numerous leukocyte |
| Eosinophil , Basophil, Monocyte, Neutrophil, Lymphocyte | Also called white blood cells |