What happen during inhalation?
1.both the external intercostal muscles and the diaphragm contract
e external intercostal muscles relax and the diaphragm contract
4.both the internal intercostal muscles and the diaphragm relax
Answers: 3 would be my answer. The main respiratory muscle is the diaphragm. It contracts to increase the inerthorasic caviety decreasing the pressure. This pulls air into the lungs or inhalation.
external Intercostal muscles are use during heavy breathing are also call accessory muscles. They are mostly at a relaxed state until the diaphragm can not breath effectively. Then they help buy hyper-expanding the chest cavity to get more nouns in.
Related Questions:
e external intercostal muscles relax and the diaphragm contract
4.both the internal intercostal muscles and the diaphragm relax
Answers: 3 would be my answer. The main respiratory muscle is the diaphragm. It contracts to increase the inerthorasic caviety decreasing the pressure. This pulls air into the lungs or inhalation.
external Intercostal muscles are use during heavy breathing are also call accessory muscles. They are mostly at a relaxed state until the diaphragm can not breath effectively. Then they help buy hyper-expanding the chest cavity to get more nouns in.
Related Questions: