How to breathe? Explain in 200 words
Answers
Answer:
Breathing in:
Healthy lung tissue is springy and elastic, so your muscles need to work to expand your chest and draw air into your lungs.
Signals from the respiratory centre in your brain travel down nerves to your diaphragm and other muscles. The diaphragm is pulled flat, pushing out the lower ribcage and abdomen. At the same time, the muscles between your ribs pull your rib cage up and out. This expands the chest and draws air into the lungs.
Air is pulled into your nose or mouth, and into your windpipe. This divides into airways supplying the left and right lungs.
The air passes down the airways, which divide another 15 to 25 times, and finally into thousands of smaller airways until the air reaches the air sacs.
Breathing out:
At rest, breathing out is mostly a passive process. The muscles you use to breathe in now relax and your elastic lungs push air out. When you exercise and your body needs to move air more quickly, your abdominal muscles provide the main drive for exhaling. The intercostal muscles also help.
The system works so that you breathe in and out comfortably at rest where the least effort is required to move air – and you’re probably not conscious of your breathing. When you exercise, you need to move more air. To do this you can take bigger breaths or breathe more quickly – usually both.
Although breathing is usually automatic, you can control it if you want to - when you talk or sing for example.
Answer:
We breathe by our lungs. we have 2 two lungs
Explanation:
The diaphragm is pulled flat, pushing out the lower ribcage and abdomen. At the same time, the muscles between your ribs pull your rib cage up and out. This expands the chest and draws air into the lungs. Air is pulled into your nose or mouth, and into your windpipe.