Best Answer: In order for air to enter the lungs 2 things must happen. 1. The diaphragm must contract. This increases the volume ofthe thoracic cavity. 2. The intercostal muscles (rib muscles) will pull he ribs up and outward also increasing the cavity's volume. Bothe of these will decrease the pressure inside the cavity and air will rush in from the outside.
The Ming dynasty (1368â1644), founded by the peasant rebel leader Zhu Yuanzhang (known posthumously as Emperor Taizu), was an imperial dynasty of China. It was the successor to the Yuan dynasty and the predecessor of the short-lived Shun dynasty, which was in turn succeeded by the Qing dynasty. Scholars have traditionally divided Ming history into three distinct periods: Early (1368â1436), Middle (1436â1573), and Late (1573â1644).
Ming Dynasty Inventions. The Ming Dynasty (1368-1644) is regarded to be one of the glorious periods in the history of China. Aside from its spectacular edifices, enchanting tourist attractions, and the wonderful Great Wall, the Ming Dynasty was also known for its amazing innovations.hese are just few of the great inventions of Ming dynasty which swept through the ages all over the world. These contributions are up to now widely used, leaving a lasting mark not only in the history of China but of the world.