The space in the thoracic cavity between the concave inner surfaces of the lungs, in which (in a special pericardial cavity) the heart is located, is called the mediastinum. The thoracic cavity is lined with a serous membrane called the pleura. The lungs are enclosed in the so-called pleural cavities, which are separate in man but communicate with one another in the majority of mammals. The shape of the thoracic cavity depends upon the shape of the thorax and the position of the diaphragm.
We sell 5 hammock sizes on the Traditional Hammocks (no spreader wood bars). Therefore, the length of the hammock is the same for each size but the difference is the width. Width gives the size. The larger the size, the wider and bigger the hammock.
usually, it references that it can handle 2 people because the width is wider. I have an ENO double, i finally settled on after going back and forth with that and a single. to me, the wider hammock means a flatter lay because of a more diagonal angle. and it does not necessarily mean its actually double the width. most of the camping hammocks like Warbonete are considered single, only because theyre designed for 1, even if the material width is close to a double (not sure about the measurements, just sayin)