In terms of anatomy and physiology, the heart and circulatory system are definitely involved, as the straw wouldn't move without the heart beating. When breathing, oxygen is pumped to the lungs, to the bronchioles, and released into the blood stream through the alveoli, which contributes to pumping the heart and keeping it beating. In the respiratory system, oxygen is breathed in through the nose, where it passes through the epiglottis and down the trachea, where it enters the left and right bronchi of the lungs. The oxygen is then sent to the bronchioles in the lungs and to the alveoli where oxygen is sent into the blood stream. Meanwhile the diaphragm is helping the lungs rise and fall. In terms of exercise physiology, this video shows a resting hear rate, so the straw is moving at a controlled rate. If I were to be running, the straw would be moving much faster. This is because external respiration is occurring at a faster rate, as more energy is being required by the runner.

External respiration, also known as the process of inhaling oxygen and releasing carbon dioxide, is very much effected by actions other than sitting still. When you jump, run in place, you are using more energy, which in return requires oxygen to create. This happens at an increased rate compared to a sitting heart rate, and therefore oxygen is being taken in faster than normal. This goes the same for touching toes even. For some who are very inflexible, touching your toes requires a generous amount of effort and strength, therefor increasing the heart rate and oxygen intake. In total, all of these different activities require increased speed in energy (ATP) intake, which increases the inhaling of oxygen, which is also known as external respiration