breathing and fuel burning
The levels of carbon dioxide in the body are monitored by chemoreceptors, (they do this by measuring pH - lower pH means more carbon dioxide). If the levels of carbon dioxide are too high then the respiratory centre of the brain (in the medulla oblongatis) sends signals to the lungs and diaphragm to increase the breathing rate.
When a deer dies, it eventually decomposes and turns into bacteria in the ground and sends carbon dioxide into the air.
Holding your breath increases levels of carbon dioxide in your body, which signals the brain to trigger the urge to breathe. Receptors in the body called chemoreceptors sense the changes in carbon dioxide levels and send signals to the brainstem, prompting it to initiate breathing.
There are many activities which release Carbon into the air. Some of these include the breathing [metabolism] of living animals, the burning [oxidation-reduction] of Carbon containing compounds found throughout living things in nature, and some chemical reactions of carbon containg compounds in rock and soil.
Your brain senses it to your diaphragm and rib muscles telling it to breathe.
breathing is controlled by the level of co2 in the blood, (not due to the fact that there may be low amounts of o2), there are chemoreceptors that measure the pH level of the blood, remember that co2 can be transported in the blood as carbonic acid, thus this acid lowers the pH. if a low pH is detected, it sends nerve impulses to our brain, that stimulates us to breathe in an effort to get rid of the co2.
When carbon dioxide accumulates in the body, it can lead to an increase in acidity, which stimulates chemoreceptors in the brain to signal the diaphragm and other respiratory muscles to increase breathing rate and depth. This response helps to remove excess carbon dioxide from the body and restore its acid-base balance.
The vena cava carries blood containing carbon dioxide and waste matter to the right atrium of the heart. This deoxygenated blood is collected from the body's tissues through the superior and inferior vena cavae. Once in the right atrium, the blood is then pumped into the right ventricle, which sends it to the lungs for oxygenation and the removal of carbon dioxide.
I'm looking for the answer myself... I'll get bakc to you when I find out.
Carbon Dioxide is absorbed by plants for use in photosynthesis to make sugars. During the process of photosynthesis, some oxygen is made as a byproduct. This oxygen is then inhaled by animals. Animals exchange oxygen in the air for carbon dioxide. Then the cycle starts over again.
The chloroplasts in ALL plants capture sunlight then it sends the... carbon dioxide(?) into the air. So trees don't make air, they make the CO2 that we need
The right side of the heart takes the blood returning from the body and sends it to the lungs. It is high in carbon dioxide and low in oxygen. After the blood goes to the lungs it returns tot he left side of the heart to be pumped back out tot he body and it low in carbon dioxide and high in oxygen.