Question

Need help with Experiment Lots of points!

Answer 1

Answer:

The answers to the questions are:

1. The activities that increased my heart rate were running and jumping, which in turn decreased once I was able to sit down and/or go to bed.
2. When physical activity is performed, the muscles require more oxygen and expel carbon dioxide generated in the activity, so the lungs perform the process of inhalation and exhalation more quickly in order to obtain a greater amount of oxygen of the air breathed (remember that not all the air is oxygen, it is about 78%) and in turn, the heart pumps faster in order to transport oxygen more quickly to the muscles that need it, which is why it increases heart rate.

Explanation:

Our circulatory and respiratory systems work synergistically with the rest of the body's systems and organs, satisfying the needs of the organs that require it, as in this example, the muscles that need to obtain oxygen and eliminate the carbon dioxide generated during the activity. physical, which is achieved through the increase in breathing and breathing rate.