Cardiac output increases when we engage in physical exercises. However

1.	Cardiac output increases when we engage in physical exercises. However, it may fall after the exercise stops. We can see that it is a fully heart controlled event. 1. What is a cardiac output? 2. How does heart increase cardiac output during exercise?
Answer» 1. Cardiac output is the volume of the blood ejected by each ventricle into the arterial system per minute. 2. In response to the sensory impulses and the adrenal medullary hormone, the excitability of the pacemaker is increased and thereby heart rate is increased during exercise. This in turn increases the heart rate.

Cardiac output increases when we engage in physical exercises. However, it may fall after the exercise stops. We can see that it is a fully heart controlled event. 1. What is a cardiac output? 2. How does heart increase cardiac output during exercise?

Answer»

1. Cardiac output is the volume of the blood ejected by each ventricle into the arterial system per minute.

2. In response to the sensory impulses and the adrenal medullary hormone, the excitability of the pacemaker is increased and thereby heart rate is increased during exercise. This in turn increases the heart rate.

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Cardiac output increases when we engage in physical exercises. However, it may fall after the exercise stops. We can see that it is a fully heart controlled event. 1. What is a cardiac output? 2. How does heart increase cardiac output during exercise?

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