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.
Mexican hammocks and Mayan hammocks are are hand woven on looms using 100% cotton cord with nylon end strings for added strength. This makes it a strong, yet comfortable hammock that will mould to your body when you sit or lie in it. It takes time to weave a hammock by hand and can use up to a mile of string. The Mayan hammocks are woven on are vertical looms. The loom consists of two vertical, cylindrical posts with two horizontal crossbars. The loom is about 6 feet wide and 6 feet tall.