Why a Chest Tube is Placed. A chest tube is placed for a variety of reasons. One reason, as you mentioned, is to help the lung re-inflate when someone has a collapsed lung, also known as a pneumothorax. In that circumstance, a chest tube is inserted along the side of the ribs to allow the lung to reinflate.
A. Osmosis is the passive movement of water from an area high in water concentration, across a semi-permeable membrane, to an area low in water concentration.
as warming by sunlight, that the. water will undergo as it moves. downstream. Also, very ï¬ne particles. and substances dissolved in the water. travel along with the water, and. the speed of the water tells us. how fast these move downstream.