The circulatory and respiratory systems work together to keep us alive by delivering oxygen to our cells and getting rid of carbon dioxide.
Getting Oxygen: When we breathe in, air goes into our lungs. In the lungs, oxygen moves through tiny air sacs called alveoli into the bloodstream. Here, red blood cells grab the oxygen and turn it into a substance called oxyhemoglobin. This oxyhemoglobin is then carried all over our body.
Getting Rid of Carbon Dioxide: Our cells need oxygen to produce energy, but they make carbon dioxide as a leftover waste. This carbon dioxide travels back to the bloodstream and heads back to the lungs.
Gas Exchange: Inside the lungs, carbon dioxide moves from the blood into the alveoli and is then breathed out. This shows how important gas exchange is. For example, when we exercise more, we breathe faster and our hearts beat quicker to get more oxygen.
Keeping Balance: Both systems help keep our body's balance, known as homeostasis. For instance, if there isn’t enough oxygen, we start breathing faster to bring in more oxygen. This shows how closely these two systems are connected.
By working together, these systems make sure our body functions properly, highlighting the amazing way our bodies work.
The circulatory and respiratory systems work together to keep us alive by delivering oxygen to our cells and getting rid of carbon dioxide.
Getting Oxygen: When we breathe in, air goes into our lungs. In the lungs, oxygen moves through tiny air sacs called alveoli into the bloodstream. Here, red blood cells grab the oxygen and turn it into a substance called oxyhemoglobin. This oxyhemoglobin is then carried all over our body.
Getting Rid of Carbon Dioxide: Our cells need oxygen to produce energy, but they make carbon dioxide as a leftover waste. This carbon dioxide travels back to the bloodstream and heads back to the lungs.
Gas Exchange: Inside the lungs, carbon dioxide moves from the blood into the alveoli and is then breathed out. This shows how important gas exchange is. For example, when we exercise more, we breathe faster and our hearts beat quicker to get more oxygen.
Keeping Balance: Both systems help keep our body's balance, known as homeostasis. For instance, if there isn’t enough oxygen, we start breathing faster to bring in more oxygen. This shows how closely these two systems are connected.
By working together, these systems make sure our body functions properly, highlighting the amazing way our bodies work.