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.
The difference between a mopeds and scooters is found in the size of the engine and the power capacity.A moped is usually designated as having an engine size under 50 cc, while a scooter engine typically has a greater displacement.The two motorized vehicles also generally differ in size, safety restrictions, licensing fees, and body frames.he difference between a mopeds and scooters is found in the size of the engine and the power capacity.