Anatomy and Physiology - A&P 2 > QUESTIONS & ANSWERS > A & P 2 Straighterline Final Exam Questions and Answers / Straighterline Anatomy and Physiology (All)

A & P 2 Straighterline Final Exam Questions and Answers / Straighterline Anatomy and Physiology

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A & P 2 Straighterline Final Exam Questions and Answers / Straighterline Anatomy and Physiology When erythrocytes are destroyed, which of the following events occurs? -ANS>> The globin portion of t... he molecule is broken down into amino acids. Type AB blood -ANS>> has both A and B antigens on the red cells In the platelet release reaction, -ANS>> ADP and thromboxanes stimulate other platelets to become activated. The hematocrit is -ANS>> d. the percentage of RBCs in a given volume of blood. What vitamin is necessary to produce many clotting factors in the liver? -ANS>> Vitamin K A white blood cell engulfing a bacterium is an example of blood functioning in -ANS>> a. protection. The oxygenated form of hemoglobin is called -ANS>> oxyhemoglobin The only formed elements that possess a nucleus when mature are the -ANS>> c. leukocytes Plasma -ANS>> . is the liquid matrix of the blood. An increased amount of heparin in the blood might -ANS>> . prevent clotting process. On which chromosome is there a mutation that leads to sickle cell anemia? -ANS>> b. chromosome 11 Blood consists of a matrix of plasma and cells; blood is a subtype of ______ tissue. -ANS>> e. connective The ability of white blood cells to leave the circulation and enter tissues is called -ANS>> b. diapedesis. The nervous system and certain chemicals can cause the constriction of a blood vessel. This is known as -ANS>> b. vascular spasm The cascade of events in the intrinsic pathway can be set into motion when _____ comes into contact with collagen. -ANS>> factor XII If a blood buffer is absent, what function of the blood would be compromised? -ANS>> regulation of pH What is tissue thromboplastin? -ANS>> A compound released by damaged tissue that initiates the extrinsic clotting pathway A deficiency of which of the following stem cells would result in a marked increase in the clotting time of blood? -ANS>> megakaryoblast Macrophages are derived from -ANS>> monocytes Which of the following events is one of the three main stages of coagulation? -ANS>> conversion of fibrinogen to fibrin The "pacemaker" of the heart is the -ANS>> SA node Where is blood moving during the period of ejection? -ANS>> Ventricles to great vessels The adult heart averages ___________ grams. -ANS>> 250-300 The epicardium -ANS>> covers the surface of the heart. Energy for contraction of myocardial cells comes primarily from -ANS>> aerobic respiration in the mitochondria What event(s) occur during the QRS complex of an ECG? -ANS>> depolarization of the ventricles and repolarization of the atria The relationship between preload and stroke volume is known as -ANS>> Starling Law of the heart. Cardiac muscle cells -ANS>> are maintained by an extensive capillary network. During the isovolumetric contraction period of the cardiac cycle, -ANS>> AV and semilunar valves are closed. Pressure in the right ventricle must exceed pressure in the ____ before the right ventricle can eject blood. -ANS>> pulmonary trunk [Show More]

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