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30 terms
Terms | Definitions |
|---|---|
 Blood has all of the following functions EXCEPT ______________________ A) nutrient transport. B) temperature regulation. C) clotting. D) vitamin D production. E) pH buffering. | vitamin D production |
| Early in human development, the first blood cell precursors form in __________________ | the yolk sac |
| A deficiency of circulating leukocytes is called ___________________________ | leukemia. |
| Antibodies belong to a class of plasma proteins called ___________________________ | gamma globulins |
| Which of the following is NOT a component of hemostasis? A) platelet plug formation B) vasodilation C) secretion of serotonin D) conversion of fibrinogen to fibrin E) secretion of platelet-derived growth factor | vasodilation |
| Any form of anemia that results from an excessive rate of erythrocyte destruction is classified as ________________________________ | hemolytic anemia. |
| Which of the following is a characteristic of mature red blood cells? A) They undergo mitosis. B) They lack a nucleus. C) They have numerous mitochondria. D) They carry most of the carbon dioxide that is transported in the blood. | They lack a nucleus |
| Which cell is phagocytic? A) basophil B) macrophage C) lymphocyte D) platelet | macrophage |
| What is a function of eosinophils? | They destroy body cells infected with viruses. |
| What is hemophilia? | It is an hereditary clotting disorder. |
| Macrophages develop from these precursor cells | Myeloblasts |
| What would be an indication that an individual is suffering from leukemia? | Examination of the blood reveals a large number of immature leukocytes |
| Low oxygen supply, such as one encountered at high altitude, may result in which of the following conditions? A) mononucleosis B) polycythemia C) leukopenia D) leukocytosis E) hemolytic anemia | polycythemia |
| The fluid portion of blood is called? | plasma |
| An erythrocyte is discribed as having this shape | biconcave disc shaped |
| Normally the number of red blood cells in a cubic millimeter of blood is about how many? | 5,000,000 |
| Normally a red blood cell (erythrocyte) is about the same size as a ______________ lumen | capillary |
| The most common white blood cell (leukocyte) at about 60% is the ______________________ . | neutrophil |
| Which of the following leukocytes is NOT classified as a granulocyte? A) neutrophil B) basophil C) eosinophil D) monocyte | monocyte |
| What is the name of the leukocyte, often seen in two sizes, that is described as having a small halo of cytoplasm and a round nucleus that fills the cell? | lymphocyte |
| What is the name of the leukocyte that has a clear cytoplasm and a kidney-shaped nucleus? | monocyte |
| Erythrocytes are filled with _______________ | molecules of hemoglobin |
| The major function of the red blood cells is to transport __________________ | Both oxygen and carbon dixoide are carried in rbc's |
| There are normally about 5 to 10 thousand _____________ per mm3 of blood. | leukocytes |
| These are cell fragments | platelets |
| These cell fragments are used to clot capillaries. What are they called? | platelets |
| The average life of a red blood cell is about _____________. | 120 days |
| The least common white blood cell type found in the blood is the _____________. | basophil |
| The precursor of this cellular element is the megakaryocyte | platelets |
| Megakaryocytes are found in the _______________. | bone marrow |
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