A shift of posture from supine to upright posture is associated with cardiovascular adjustments. Which of the following is NOT true in this context:: (A) Rise in central venous pressure, (B) Rise in hea rate., (C) Decrease in cardiac output., (D) Decrease in stroke volume
Answer is A. A i.e. Rise in central venous pressure On assumption of erect posture, the force of gravity opposes the return of blood incentral venous pressure)Q