Answer:
The thoracic cavity
Explanation:
The thoracic cavity is the anterior ventral body cavity found within the rib cage in the torso. It houses the primary organs of the cardiovascular and respiratory systems, such as the heart and lungs, but also includes organs from other systems, such as the esophagus and the thymus gland.
Insomnia is maybe the answer
Call an RRT, call for additional help. Meanwhile put on some O2 and reposition as necessary.
If you do it correctly or how much you do it. hope this helps