Task 4 of 6 (AC 2.1) No more than 200 words for the task A. Label the conductive tissues in the boxes above. B. What is also known as the pacemaker of the heart? Ü C. Describe the order the impulse travels in the heart. D. Define systolic E. Define diastolic I
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- States) Show your workl 1. Juan has a cardiac output (CO) of 6000 mL per minute at rest. He has a resting heart rate (HR) of 60 beats/min. What is his stroke volume? I 2. Ejection fraction is the percentage of blood pumped out of the ventricles (EDV) with each heartbeat (see formula below). If Juan's EDV is 150 mL, what is his ejection fraction? Ejection Fraction = Stroke volume End diastolic volume X 100 3. Juan went for a walk and his heart rate climbed to 110 beats/min. his EDV decreased to 125 mL and his ejection fraction was 80%. What was his cardiac output? E FocusTask 4 of 6 (AC 2.1) No more than 200 words for the task A. Label the conductive tissues in the boxes above. B. C. D. What is also known as the pacemaker of the heart? Describe the order the impulse travels in the heart. Define systolicTask 2 of 6 (AC 1.2) Artery Artery Capillary Vein In the table below, discuss the structure and functions of arteries, veins and capillaries: Structure Function Valves Structure and size of walls Y / N Capillary Y / N -Basement membrane Valve Endothelium -Tunica intima- Basement membrane Y / N -Tunica media- -Tunica adventitia Yein
- Work 3. Methods of heart examination. Electrocardiography (ECG) Label the I, II III standard leads. In which standard lead is ECG amplitude maximum? Img. 44. Scheme of electrode application for ECG.Objective: To become familiar with the most important drugs used in heart failure Instruction: 1. In a tabulated form, supply the (1) mechanism of action (2) effects and (3) duration of action of the following drugs for heart failure. Furosemide а. b. Spironolactone с. Сaptopril d. Losartan e. Digoxin f. Isosorbide dinitrate g. NitroprussideIV. Human Cardiovascular Physiology- Blood Pressure and Pulse Determinations Cardiac Cycle 1. Using the terms to the right of the diagram and the letter choices on the diagram, correctly identify each valve closing and opening, chamber pressures, volume lines, heart sounds, and each period of the cardiac cycle. 1. aortic pressure 2. atrial pressure (left) QRS 3. ECG 4. first heart sound 120 5. second heart sound 6. ventricular pressure (left) 80 7. ventricular volume 8. aortic (semilunar) valve closes 40 9. aortic (semilunar) valve opens 10. AV and semilunar valves are closed (2 letters) 11. AV valve closes 120 12. AV valve opens 13. ventricular diastole (2 letters) 14. ventricular systole 60 Ventricular volume (ml) Pressure (mm Hg) (Au)
- Date Pre-Lab Exercise 12-3 Pathway of Blood Flow through the Heart Answer the following questions about the pathway of blood flow through the heart. Use your textbook and Exercise 12-1 in this unit for reference. 1. Regarding veins: a. Where do veins carry blood? deoxygenated? b. Is this blood generally oxygenated or c. Does this rule have any exceptions? If yes, where? 2. Regarding arteries: a. Where do arteries carry blood? Is this blood generally oxygenated or deoxygenated? c. Does this rule have any exceptions? If yes, where? 3. Where does each atrium pump blood when it contracts? Right atrium: a. b. Left atrium: 4. Where does each ventricle pump blood when it contracts? a. Right ventricle: b. Left ventricle:Work 1. Neural regulation of heart work Indicate in the diagram: V Right and left sympathetic trunks V Right and left vagus nerves Specify mediators and receptor types. Img. 45. Heart innervation. 35ADDITIONAL ACTIVITIES 1. A patient with iron deficiency anemia experiences shortness of breath, weakness and has a pale skin. Explain why anemic people experience and share the same symptoms. 2. A pacemaker is a small device that is placed in the chest or abdomen to help control abnormal heart rhythms. This device uses electrical pulses to prompt the heart to beat at a normal rate. Who are the patients greatly in need of this procedure of having pacemaker built in their chest? And why?
- Work 1. Scheme of the structure of the circulatory system. Label in the scheme: 1. departments of the heart, 2. vessels of large and small circles of blood circulation, 3. portal blood circulation of the liver, 4. sites of lymphogenesis, 5. the place where the lymphatic system enters the bloodstream, 6. sections of the vascular bed, in which blood becomes saturated with oxygen and gives off carbon dioxide, 7. sections of the vascular bed, in which blood gives oxygen and receives carbon dioxide. Img. 47. The scheme of the structure of the circulatory system and its connection with the lymphatic system.are correct. 33. AV nodal delay a. maintains cardiac output by allowing enough ventricular filling. b. prevents excessive stimulation of ventricles. c. is due to the fact that fibers that make up AV node are smaller in diameter. a allows ventricular repolarization. c. Only (a), (b) and (c) are correct. 34. Which of the following about action potential in autorhytmic cells is INCORRECT? Resting membrane potential does not remain stable. b. Repolarization phase is due to opening of K+ channels. Depolarization phase is due opening of Na+ channels. d. a. с. Resting membrane potential is more positive compared to cardiac muscle fibers None of the above is INCORRECT. е.Nursing When comparing Ist, 2nd and 3rd degree heart block: a. Which has the same contraction rate in the ventricles as in the atria? b. Which has (have) a slower ventricular rate than atrial rate? C. Which has a very slow but regular ventricular beat? d. In 3rd degree heart block, where is the atrial rate set? Where is the ventriclar rate set ?