End diastolic volume increases in:
Correct Answer: Increase in negative intrathoracic pressure
Description: Ans. c. Increase in negative intrathoracic pressureFactors Affecting End Diastolic VolumeEnd diastolic volume increases in conditions associated with increase in negative intrathoracic pressure.Factors Decreasing EDVIncreased intra-pericardial pressuredeg (as aresult of infection of pressure from a tumor):Limits the extent to which ventricle can fillDecrease in ventricular compliancedeg:Increase in ventricular stiffness produced by MI, infiltrative disease.Standing decreases venous returndegFactors Increasing EDVIncreased total blood volume increases venous returndeg:Constriction of vein reduces the size of venous reservoirIncreased negative intrathoracic pressuredeg:Increases the pressure gradient along which blood flows to theMuscle activitydeg: Increases venous return as a result of pumping action
Category:
Physiology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now