Ch19 Homework - Blood ~20 mins PDF

4/7/24, 1:53 AM Ch19 - Homework - Blood ~20 mins Ch19 - Homework - Blood ~20 mins Due: 11:59pm on Tuesday, April 9, 2024 To understand how points are awarded, read the Grading Policy for this assignment. Chapter 19 Reading Quiz Question 3 Part A Which of the following is NOT a feature of RBC morphol...

4/7/24, 1:53 AM Ch19 - Homework - Blood ~20 mins Ch19 - Homework - Blood ~20 mins Due: 11:59pm on Tuesday, April 9, 2024 To understand how points are awarded, read the Grading Policy for this assignment. Chapter 19 Reading Quiz Question 3 Part A Which of the following is NOT a feature of RBC morphology? ANSWER: a convex shape allowing for more efficient transport of oxygen a large surface area-to-volume ratio ability to form stacks known as rouleaux ability to bend and flex when entering capillaries Correct Chapter 19 Reading Quiz Question 9 Part A Once platelets arrive at the site of injury, they secrete chemicals to promote the clotting process. Hemophiliacs lack clotting factor VIII or IX. Which of the following would be the most likely hypothesis to best describe the underlying problem with their condition? ANSWER: Lack of clotting factors VIII or IX results in a deficiency in factor X production. Thus, this deficit in the intrinsic pathway leads to compromised blood clotting. In hemophilia, the lack of clotting factors VIII and IX results in the disruption of fibrin production through the extrinsic pathway. Lack of calcium compromises the production of factor X, which disrupts the ability of the common pathway to initiate clotting through the conversion of fibrinogen to fibrin. In hemophilia, platelets cannot aggregate. As a consequence, no PF-3 is produced to activate proenzymes and initiate the intrinsic pathway. Correct Chapter 19 Reading Quiz Question 6 Part A Suzie was sewing when she accidently punctured her finger with the needle. Several days later, it is filled with pus. Which statement provides an explanation of how the WBCs were able to populate that wound? ANSWER: https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10505310 1/16 4/7/24, 1:53 AM Ch19 - Homework - Blood ~20 mins WBCs are positively attracted to specific chemical stimuli. WBCs can migrate out of the blood stream. WBCs move through tissues using amoeboid movement. WBCs demonstrate all of the listed properties, allowing them to locate and move into the wound. Correct Chapter 19 Clinical Note Questions 1 and 2: Bleeding and Clotting Extremes Bleeding and Clotting Extremes In a healthy circulation pattern, blood moves relatively freely through smooth blood vessels. Both the composition of the blood and the structure of the vessels must be normal to support ideal blood flow. Bleeding problems occur when the blood lacks platelets, or when clotting proteins are deficient or defective. The most common reason for bleeding is thrombocytopenia, a condition in which the platelet count is too low. This may result from drug toxicity, from underlying bone marrow disease, or for unknown reasons. Hemophilia is a genetic disorder seen in males and characterized by the lack of clotting factors such as Factor VIII or IX. When hemostas is is activated (for example, due to trauma), the coagulation pathway cannot proceed, and so the fibrin clot cannot form. The person experiences bleeding that may prove fatal depending on the severity of t he injury. Clotting problems are called thrombophilia. When clots form in the venous system, the serious condition deep vein thrombosis (DVT) can result. These clots can loosen, travel through the circulation, and end up wedged in blood vessels of the lungs. The lungs are then hampered in oxygenating the blood. This condition, called pulmonary embolism, is fatal in 30 percent of cases. Part A Out of the formed elements in the blood, which one plays the most important role in the clotting process? ANSWER: platelets red blood cells basophils monocytes Correct Part B The two most important factors affecting almost every aspect of the clotting process are __________. ANSWER: vitamin K and calcium sodium and chloride vitamin E and vitamin C vitamin K and vitamin B12 Correct Chapter 19 Reading Quiz Question 10 https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10505310 2/16 4/7/24, 1:53 AM Ch19 - Homework - Blood ~20 mins Part A Which of these phases is NOT part of hemostasis? ANSWER: platelet phase coagulation phase erythropoiesis phase vascular phase Correct Chapter Test - Chapter 19 Question 3 Part A Which plasma protein is NOT correctly matched with its function? ANSWER: globulins; body defense albumin; osmotic pressure albumin; transport fibrinogen; transport Correct Chapter Test - Chapter 19 Question 12 Part A Which of these statements about basophils is FALSE? ANSWER: They are abundant. They release histamine. They contain cytoplasmic granules. They promote inflammation. Correct Chapter Test - Chapter 19 Question 15 https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10505310 3/16 4/7/24, 1:53 AM Ch19 - Homework - Blood ~20 mins Part A During thrombocytopoiesis, platelets arise from _______. ANSWER: myelocytes monoblasts reticulocytes megakaryocytes Correct Chapter Test - Chapter 19 Question 2 Part A The formed elements of blood consist of __________. ANSWER: red blood cells platelets white blood cells all of the listed responses Correct Art-labeling Activity: White Blood Cells Identify white blood cells. Part A Drag the labels to identify white blood cells. ANSWER: https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10505310 4/16 4/7/24, 1:53 AM Ch19 - Homework - Blood ~20 mins Reset Neutrophil Eosinophil Basophil Monocyte Help Lymphocyte Correct Chapter Test - Chapter 19 Question 11 Part A All of the following characteristics describe neutrophils EXCEPT that _________. ANSWER: they contain a segmented nucleus with two to five lobes they are the most abundant WBC they are phagocytic they release histamine Correct Chapter Test - Chapter 19 Question 14 Part A The agranular leukocyte that can differentiate into a cell that is capable of phagocytosis is the __________. ANSWER: https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10505310 5/16 4/7/24, 1:53 AM Ch19 - Homework - Blood ~20 mins lymphocyte monocyte neutrophil eosinophil Correct Chapter Test - Chapter 19 Question 7 Part A The site of red blood cell production in an adult is the __________. ANSWER: liver yellow bone marrow red bone marrow yolk sac Correct Chapter 19 Clinical Note Question 1: Collecting Blood for Analysis Collecting Blood for Analysis Fresh whole blood is generally collected from a superficial vein, such as the median cubital vein on the anterior surface of the elbow. The procedure is called venipuncture (VĒN-i-punk-chur; vena, "vein" + punctura, "a piercing"). It is a common sampling technique because (1) superficial veins are easy to locate, (2) the walls of veins are thinner than those of comparably sized arteries, and (3) blood pressure in the venous system is relatively low, so the puncture wound seals quickly. The most common clinical procedur es examine venous blood. A small drop of blood can be used to prepare a blood smear, a thin film of blood on a microscope slide. The blood smear is then stained with special dyes to show each type of formed element. Blood f rom peripheral capillaries can be obtained by puncturing the tip of a finger, an earlobe, or (in infants) the great toe or heel. Small amounts of capillary blood can also be used to test glucose, cholesterol, and hemoglobin levels. This method is valuable when veins are difficult to access. An arterial puncture, or "arterial stick," can be used for blood gas analysis, an indicator of lung function. Samples are generally drawn from the radial artery at the wrist or the brachial artery at the elbow. Part A A blood smear prepared after a venipuncture shows a preponderance of very grainy white blood cells. Which of the following formed elements is not part of this "grainy" group? ANSWER: neutrophils eosinophils basophils monocytes https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10505310 6/16 4/7/24, 1:53 AM Ch19 - Homework - Blood ~20 mins Correct Chapter Test - Chapter 19 Question 6 Part A Red blood cells carry __________ to the lungs and __________ to the tissues. ANSWER: carbon dioxide; oxygen oxygen; carbon dioxide oxygen; nutrients nutrients; carbon dioxide Correct Art-based Question: Blood Question 9 Part A What aspect of hemostasis is illustrated in this diagram? ANSWER: vascular spasm platelet aggregation common pathway of coagulation intrinsic pathway of coagulation Correct Art-based Question: Blood Question 6 https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10505310 7/16 4/7/24, 1:53 AM Ch19 - Homework - Blood ~20 mins Part A Which of these is characteristic of the cell indicated by the arrow? ANSWER: engulfs pathogens provides defense against specific antigens releases cytotoxic enzymes reduces inflammation Correct Art-labeling Activity: The Phases of Hemostasis and Clot Retraction Order the phases of hemostasis and clot retraction in the correct sequence. Part A Drag the labels to order the phases of hemostasis and clot retraction in the correct sequence. ANSWER: Reset Coagulation phase Help Clot retraction Vascular phase Platelet phase https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10505310 8/16 4/7/24, 1:53 AM Ch19 - Homework - Blood ~20 mins Correct Chapter Test - Chapter 19 Question 9 Part A People with type O blood are considered "universal donors" for transfusions because __________. ANSWER: their blood is plentiful in A and B antibodies their red blood cells lack A and B surface antigens they usually have very strong red blood cells their blood lacks A and B antibodies Correct Chapter Test - Chapter 19 Question 18 Part A The initial phase of hemostasis involves _________. ANSWER: the formation of a platelet plug platelets secreting clotting factors activation of Factor X contraction in the smooth muscle fibers of the vessel wall Correct Chapter Test - Chapter 19 Question 5 Part A Which of the following statements is true about hemoglobin? ANSWER: https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10505310 9/16 4/7/24, 1:53 AM Ch19 - Homework - Blood ~20 mins Each hemoglobin molecule can carry four oxygen molecules. Hemoglobin can only bind oxygen. All that is needed to bind oxygen is a molecule of heme. Each hemoglobin molecule is made up of one alpha and one beta chain of polypeptide. Correct Art-based Question: Blood Question 1 Part A What binds to this structure on the hemoglobin molecule? ANSWER: globin heme carbon dioxide oxygen Correct Chapter Test - Chapter 19 Question 19 Part A The common pathway in coagulation ends with __________. ANSWER: https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10505310 10/16 4/7/24, 1:53 AM Ch19 - Homework - Blood ~20 mins release of PF-3 positive feedback of thrombin formation adhesion of platelets to a damaged vessel wall conversion of soluble fibrinogen to insoluble fibrin Correct Chapter Test - Chapter 19 Question 10 Part A A person with a type A positive blood can safely receive blood from all of these donors EXCEPT __________. ANSWER: O positive A negative A positive B positive Correct Chapter 19 Reading Quiz Question 7 Part A Antihistamines would work best against which type of WBC? ANSWER: neutrophil basophil eosinophil monocyte Correct Chapter Test - Chapter 19 Question 1 Part A The following statements about blood are true EXCEPT that __________. https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10505310 11/16 4/7/24, 1:53 AM Ch19 - Homework - Blood ~20 mins ANSWER: it contains about 55 percent plasma the viscosity is five times greater than water it contains dissolved gases the pH is slightly acidic Correct Art-based Question: Blood Question 2 Part A What is the role of transferrin in the cycle shown above? ANSWER: It binds to bilirubin for excretion. It activates marrow to increase RBC production. It transports iron ions in the plasma. It combines with heme to form hemoglobin. Correct Chapter Test - Chapter 19 Question 17 Part A Most of the plasma proteins required in the coagulation process are produced by __________. ANSWER: https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10505310 12/16 4/7/24, 1:53 AM Ch19 - Homework - Blood ~20 mins lymph nodes megakaryocytes platelets the liver Correct Chapter 19 Reading Quiz Question 8 Part A Megakaryocytes are the source of __________. ANSWER: monocytes lymphocytes platelets RBCs Correct Chapter Test - Chapter 19 Question 16 Part A An important function of platelets is to __________. ANSWER: transport nutrients transport blood gases transport thrombopoietin transport clotting factors Correct Chapter Test - Chapter 19 Question 4 Part A The most abundant plasma protein is __________. https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10505310 13/16 4/7/24, 1:53 AM Ch19 - Homework - Blood ~20 mins ANSWER: fibrinogen albumin globulins peptide hormones Correct PhysioEx Exercise 11 > Activity 4: Overview and Pre-lab Quiz for Blood Typing Read the introduction and then answer the Pre-lab Quiz questions to the right. Exercise 11 > Activity 4: Blood Typing Part A A person with type O blood has _______. ANSWER: O agglutinins O antigens neither A nor B agglutinogens neither anti-A nor anti-B agglutinins Correct Part B With respect to ABO and Rh blood groups, there are __________ different blood types. ANSWER: https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10505310 14/16 4/7/24, 1:53 AM Ch19 - Homework - Blood ~20 mins four ten eight six Correct Part C A person with type AB blood has _______. ANSWER: A and B antigens and neither anti-A nor anti-B antibodies. A and B antigens neither anti-A nor anti-B antibodies anti-A and anti-B antibodies Correct Part D A person with A+ blood has _______. ANSWER: the A antigen on the surface of the red blood cells Rh antigen on the surface of the red blood cells anti-B antibodies all of the above Correct Chapter 19 Reading Quiz Question 5 Part A The antibodies that attack antigens on foreign RBCs are called __________. ANSWER: agglutinogens Rh factors agglomerates aggluntinins https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10505310 15/16 4/7/24, 1:53 AM Ch19 - Homework - Blood ~20 mins Correct Chapter 19 Reading Quiz Question 1 Part A Plasma makes up approximately what percentage of whole blood? ANSWER: 65 percent 55 percent 45 percent 38 percent Correct Score Summary: Your score on this assignment is 91.5%. You received 2.74 out of a possible total of 3 points. https://session.masteringaandp.com/myct/assignmentPrintView?assignmentID=10505310 16/16