The diaphragm is a wall of muscle that separates the thorax and abdomen, which would place it under the lungs.
Heart and lungs
Lungs do not actively expand and contract by themselves. A muscle below the lungs called the diaphragm acts as a bellow, creating negative pressure within the abdominal cavity that holds the lungs to allow air to rush in and out the lungs.
They are held in place by muscle and tendons. Some bones are held in place by other bones. The hip bone has a socket that holds it in place.
back muscle
No
SmooTh muscle
yes because organs are made up of tissues and so are muscles and for the lungs to move they need the muscle. So yes your lungs do have muscles.
The muscle is the "diaphragm" muscle. It is located beneath the lungs. When it moves down and away, it creates lower pressure around the lungs, and the air pressure outside the body flows into the lungs. When it moves up and in, it compresses the lungs, increasing the pressure to force the air back out.
The Mesentery membrane.
smooth muscle
When the lungs are expanded, this action takes place due to the diaphragm contracting during inhalation. During exhalation, the diaphragm relaxes.