1. Intercostal/diaphragm muscles relax, moving ribs/diaphragm back to their original position 2. The volume in the thorax decreases and air pressure in the lungs increases, and air is expelled from the lungs How does the brain control breathing?
2nd ribarticulates to Manubrium at this site. The ribs are counted anteriorly starting from this point. Carina of trachea is at this level. What is carina in trachea? TRAY-kee-uh)A ridge at the base of the trachea(windpipe) that separates the openings of the right and left main bronchi...
increase and decrease the size of the thoracic cavity to draw air into, and push air out of, the lungs. inspiration muscles the muscles that increase the size of the thoracic cavity when they contract. expiratory muscles the muscles that decrease the thoracic cavity size diaphragm a thin, dome...