2006-11-19 11:28:57 · 5 answers · asked by Honey Bee 1 in Health ➔ Diseases & Conditions ➔ Respiratory Diseases
Your lungs inflate because your chest expands (intercostal muscles flexing) and the diaphram flexes. This creates negative pressure inside the pleural cavity and causes the lungs to inflate (the actions of the chest wall and diaphragm essentially creates a vacuum and air tries to enter through the nasal or oral cavities, to reduce the vacuum)
2006-11-19 11:33:12 · answer #1 · answered by Brewjar 2 · 1⤊ 0⤋
The lungs inflate becuase the chest expands. According to Boyles law, the pressure of a gas is inversely propotional to its voulume, an increase in thoratic volume results in a decrease in intrapulmonary pressure. During inhalation, the diaphram contacts and pulls itself into a more flattened form. This lowers the floor of the thorax.
2006-11-22 01:35:30 · answer #2 · answered by Never give up on the good times 2 · 0⤊ 0⤋
Your lungs inflate due to the diaphragm moves downward and the expansion of your chest causing negative pressure which causes air to move into your lungs...So lungs inflate due to chest expansion...Exhaling is when your diaphragm relaxes thus causing a smaller space for the air and it rushes out... like a balloon losing air.
2006-11-19 19:35:06 · answer #3 · answered by juno406 4 · 0⤊ 0⤋
Chest expands because your diaphragm inflates.
2006-11-19 19:31:01 · answer #4 · answered by Daiquiri Dream 6 · 0⤊ 0⤋
your chest expands when your lungs inflate
2006-11-19 19:31:08 · answer #5 · answered by gunnerbstrong 3 · 0⤊ 1⤋