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LIFESPAN 1: Week 2
| Question | Answer |
|---|---|
| Bone marrow | the flexible tissue found in the hollow interior of bones. In adults, marrow in large bones produces new blood cells. |
| Hematocrit | the proportion of blood volume that is occupied by red blood cells. It is normally about 48% for men and 38% for women |
| Leukocytes | cells of the immune system defending the body against both infectious disease and foreign materials. |
| Lymphangiography | a radiographic procedure for imaging the lymphatic system. Lymph nodes and lymph vessels are visualized after injection of a radiopaque contrast medium. |
| mononuclear phagocyte system | The reticuloendothelial system (RES), part of the immune system, consists of the phagocytic cells located in reticular connective tissue, primarily monocytes and macrophages. |
| prothrombin time | its derived measures of prothrombin ratio (PR) and international normalized ratio (INR) are measures of the extrinsic pathway of coagulation |
| thrombocytes | cells that play a key role in blood clotting. In mammals, thrombocytes are anucleated cell fragments called platelets. |
| Anemia | a decrease in normal number of red blood cells (RBCs) or less than the normal quantity of hemoglobin in the blood |
| vitamin k | denotes a group of lipophilic, hydrophobic vitamins that are needed for the posttranslational modification of certain proteins, mostly required for blood coagulation |
| primary hemostasis | a complex process which causes the bleeding process to stop. It refers to the process of keeping blood within a damaged blood vessel (the opposite of hemostasis is hemorrhage |
| stem cells | cells found in most, if not all, multi-cellular organisms. They are characterized by the ability to renew themselves through mitotic cell division and differentiating into a diverse range of specialized cell types |
| coagulation factors | Process when blood forms clots. A damaged blood vessel wall is covered by a platelet& fibrin-containing clot to stop bleeding & begin repair of the damaged vessel. Disorders of coagulation lead to an increased risk of hemorrhage/clotting. |
| secondary hemostasis | Has 2 pathways, the contact activation pathway (intrinsic pathway), and the tissue factor pathway (extrinsic pathway), which lead to fibrin formation. 2 pathways of equal importance joined to a common pathway. |
| Platelets | small, irregularly-shaped anuclear cells (no nucleus containing DNA), derived from fragmentation of precursor megakaryocytes. Lifespan is between 8-12 days. Natural source of growth factors. Lead to the formation of blood clots in hemostasis. |
| Erythrocytes | the most common type of blood cell and the vertebrate body's principal means of delivering oxygen to the body tissues via the blood. They take up oxygen in the lungs or gills and release it while squeezing through the body's capillaries. |
| dried herbs | fresh herbs that have had the moisture removed by sun or heat |
| extracts | made by isolating certain components, resulting in more reliable dosing |
| oils | made by soaking dried herb in oil or vegetable oil and then heating them for an extended time |
| Dietary Supplement Health and Education Act of 1994 | clarification of marketing and regulations for herbal remedies |
| Activated Partial Thromboplastin time(aPTT or APTT) | performance indicator; measures efficacy of the "intrinsic" (contact activation pathway)& the common coagulation pathways. Detects abnormalities in blood clotting; monitors TX effects w heparin. Used in conjunction w PT which msrs the extrinsic pathway. |
Created by:
asbraund
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