Pluck
1. The texture of the trachea is bumpy because of rings of cartilage. These rings of cartilage keep the windpipe open - it is very important that it does not close.
2. The lungs are a creamy-red colour, but turn paler into cream when inflated. They are soft and smooth, like a balloon. The lungs could have been a different colour when the sheep was functioning because there was blood being pumped around the body.
3. The lungs exchange gases in the blood which are pumped around the body by the heart in a repeating cycle.
4. The diaphragm controls when the lungs inflate and deflate. When the diaphragm contracts, the lungs inflate because the muscle make space for air. When the diaphragm relaxes the lungs deflate because the expanding muscles push the air out.
5. Your liver filter toxins. Also, it produces bile that is used in the intestines.
1. The texture of the trachea is bumpy because of rings of cartilage. These rings of cartilage keep the windpipe open - it is very important that it does not close.
2. The lungs are a creamy-red colour, but turn paler into cream when inflated. They are soft and smooth, like a balloon. The lungs could have been a different colour when the sheep was functioning because there was blood being pumped around the body.
3. The lungs exchange gases in the blood which are pumped around the body by the heart in a repeating cycle.
4. The diaphragm controls when the lungs inflate and deflate. When the diaphragm contracts, the lungs inflate because the muscle make space for air. When the diaphragm relaxes the lungs deflate because the expanding muscles push the air out.
5. Your liver filter toxins. Also, it produces bile that is used in the intestines.