Thorax. Thorax. Thorax is the superier part of the trunk between the neck and adomen . It extends below the neck to the diaphragm. It contains the primary organs of respiratory and cardiovascular system. Thoracic Skeleton.
The air passing through the nasal cavity is
The cilia of the respiratory epithelium move the particulate matter towards the pharynx where it passes into the esophagus and is digested in the stomach.
There are two layers to the pericardial sac:
The wall of each heart chamber consists of