Blood and heart Study guide

Blood and heart Study guide - immediately cause death but...

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Review questions: blood and heart 1. When and how does erythropoietin regulate hematopoiesis? 2. What are the three major roles of the plasma proteins? 3. How is oxygen delivered in the blood? 4. What are the 3 major differences between the myocardium and the skeletal muscle and how do these differences contribute to the ability of the heart to function as an effective pump? 5. Why is it important to prevent tetanic contractions in cardiac muscle, but not in skeletal muscle? 6. Define autorhythmic cells and contractile cells of the heart 7. What is accomplished by the delay of action potential transmission through the AV node? 8. What does an ECG measure? Name the waves produced by an ECG, and state what events occur during each wave. 9. Define systole and diastole. When does most ventricular filling occur? 10. Fibrillation is abnormal, rapid contractions of different parts of the heart that prevent the heart muscle from contracting as a single unit. Explain why atrial fibrillation does not
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Unformatted text preview: immediately cause death but ventricular fibrillation does. 11. Describe the relationship among T wave, decreased ventricular pressure, and closure of the semilunar valves. 12. The heart is subjected to both intrinsic and extrinsic regulation. Give one example of each in describing how cardiac output can be regulated. 13. Increased venous return increases the stroke volume in two ways. What are those? 14. How do parasympathetic neurons regulate cardiac output? Vocabulary bank hematopoiesis ; Erythrocytes ; leukocytes ; thrombocytes ; hemoglobin ; erythropoietin ; fibrinogen Aortic semilunar valve ; antrioventricular (AV) valves; SA node ; AV node ; gap junctions ; autorhythmic cells ; contractile cells ; pacemaker ; systole ; diastole ; preload ; afterload ; EDV; ESV ; stroke volume ; cardiac output ; heart rate ; venous return...
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This note was uploaded on 06/10/2010 for the course BIOL 252 taught by Professor Johnson during the Spring '07 term at UNC.

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Blood and heart Study guide - immediately cause death but...

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