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Anatomy Study
Anatomy Study cp12
| Question | Answer |
|---|---|
| What type of tissue is blood | A connective tissue with a fluid matrix called plasma |
| What does the circulatory system consist of | Blood, the heart, and blood vessels. |
| What are the primary functions of blood | Transport of nutrients and oxygen, removal of metabolic wastes and carbon dioxide, and maintenance of homeostasis |
| What are the four major components of blood | Red blood cells, white blood cells, platelets, and plasma |
| What are red blood cells, white blood cells, and platelets collectively called | Formed elements |
| Where are formed elements produced | Red bone marrow through hematopoiesis |
| What is the normal blood pH range | 7.35 to 7.45 |
| What percentage of blood is made up of formed elements | Approximately 45% |
| What percentage of blood is plasma | Approximately 55% |
| What is the average adult blood volume | 5 liters, or 5.3 quarts |
| What is the white layer between plasma and red blood cells in centrifuged blood called | The buffy coat |
| What is another name for red blood cells | Erythrocytes |
| What is the shape of red blood cells | Biconcave disks |
| What does the biconcave shape increase | Surface area for gas exchange |
| Mature RBCs lack what | A nucleus and most organelles |
| What is the primary protein in RBCs | Hemoglobin |
| What does hemoglobin carry | Oxygen and carbon dioxide |
| How do RBCs produce ATP | Through glycolysis |
| Do RBCs contain mitochondria | No |
| What is the normal RBC count for adult males | 4,700,000 to 6,100,000 cells/µL. |
| What is the normal RBC count for adult females | 4,200,000 to 5,400,000 cells/µL |
| RBC count directly affects what | Oxygen-carrying capacity |
| What is RBC production called | Erythropoiesis |
| Where are RBCs produced after birth | Red bone marrow |
| What is the average RBC lifespan | 120 days |
| What hormone regulates RBC production | Erythropoietin |
| What condition can result from excess RBCs | Polycythemia |
| What vitamins are required for DNA synthesis? | Vitamin B12 and folic acid |
| What mineral is required for hemoglobin production | Iron |
| What is reduced oxygen-carrying capacity due to low RBCs or hemoglobin called | Anemia |
| Where are old RBCs destroyed | By macrophages in the liver and spleen |
| Hemoglobin is broken into what two parts | Heme and globin Blood and plasma |
| What happens to iron from old RBCs | It is recycled for new RBC production |
| What is another name for white blood cells | Leukocytes |
| What is the primary function of WBCs | Defense against disease |
| What is the movement of WBCs out of blood vessels called | Diapedesis |
| What is directed movement toward an injury called | Chemotaxis |
| What two hormone groups regulate WBC production | Interleukins and colony-stimulating factors |
| What percentage of WBCs are neutrophils | 50–70% |
| What percentage of WBCs are eosinophils | 1–3% |
| What do eosinophils release | Enzymes |
| What do eosinophils control? | Parasites and allergic reactions |
| What percentage of WBCs are basophils | About 1% |
| What do basophils release | Heparin and histamine |
| What percentage of WBCs are monocytes | 3–9% |
| What do monocytes become in tissues | Macrophages |
| What percentage of WBCs are lymphocytes | 25–33% |
| What are lymphocytes responsible for | Immunity |
| What is the normal WBC count | 5,000 to 10,000 cells/µL |
| What is an increased WBC count called | Leukocytosis |
| What is a decreased WBC count called | Leukopenia |
| What test shows WBC percentages | Differential WBC count |
| What is another name for platelets | Thrombocytes |
| Platelets are fragments of what? | Megakaryocytes |
| What hormone regulates platelet production | Thrombopoietin |
| What is the function of platelets | Repair damaged blood vessels |
| What is the normal platelet count | 150,000 to 400,000 platelets/µL. |
| What is the approximate lifespan of platelets | 10 days |
| What percentage of plasma is water | 92% |
| What are the three major plasma proteins | Albumins, globulins, and fibrinogen |
| What are the primary blood gases | Oxygen and carbon dioxide |
| How are lipids transported | Bound to proteins |
| What are the most abundant plasma electrolytes listed in the notes | Sodium and potassium |
| What does hemostasis mean | Stoppage of bleeding |
| What are the three mechanisms of hemostasis | Vasospasm, platelet plug formation, and blood coagulation |
| What does tissue damage release | Tissue thromboplastin |
| Prothrombin is converted into what | Thrombin |
| Fibrinogen is converted into what | Fibrin |
| What is plasma without clotting factors called | Serum |
| What is a stationary clot called | A thrombus |
| What is a traveling clot called | An embolus |
| What serious clot-related conditions are listed in the notes | Pulmonary embolism and myocardial infarction |
| What tests are required before a transfusion? | Blood typing and crossmatching. |
| What is clumping of RBCs called | Agglutination. |
| What antigens and antibodies does Type A blood have | A antigens and anti-B antibodies |
| What antigens and antibodies does Type B blood have | B antigens and anti-A antibodies |
| What antigens does Type AB blood have | A and B antigens |
| What antibodies does Type AB blood have | Neither type of antibody |
| What antigens does Type O blood have | Neither A nor B antigens |
| What antibodies does Type O blood have | Both types of antibodies |
| What does the presence of antigen D mean | Rh positive |
| What does the absence of antigen D mean | Rh negative |
| What can Rh incompatibility in pregnancy cause | Erythroblastosis fetalis |
| What preventive treatment is listed | RhoGAM |