Diaphragm The diaphragm is a thin muscular tendinous septum that separates the chest cavity from the abdominal cavity and allows the structures which pass between the chest and abdomen. It is the most important muscle for respiration. It is dome shaped and consists of two parts which are1. Peripheral muscular part2. Centrally Read more…
the thorax is the part between the abdomen and neck. it consists of a chest cavity, ribs, and sternum. there are 12 ribs in the human body which are classified into true ribs, false ribs, and floating ribs.
The sternum is a bone to which ribs are attached. sternum has three parts which are
a body of the sternum