For centuries the gondola was the chief means of transportation and most common watercraft within Venice. It is propelled by a gondolier. In modern times the iconic boats still have a role in public transport in the city, serving as traghetti (ferries) over the Grand Canal.ondola Races on the Grand Canal of Venice, by Grigory Gagarin (1830s). The image shows so-called gondolinos, a slimmer and light-weight version of the gondola specifically built for racing and elegant outings.
Pericardium: The conical sac of fibrous tissue that surrounds the heart and the roots of the great blood vessels. The pericardium's outer coat (the parietal pericardium) is tough and thickened, loosely cloaks the heart, and is attached to the central part of the diaphragm and the back of the breastbone.
Related terms: pericardium, inflammation of the heart membrane. The pericardium is a thin, sac-like covering (a membrane) that surrounds your heart. The outer layer of the pericardium surrounds the roots of your heart's major blood vessels.Ligaments attach this layer to your spinal column, diaphragm, and other parts of your body. The inner layer of the pericardium is attached to the heart muscle.ericarditis is inflammation of the pericardium, causing the amount of fluid between the two layers of the pericardium to increase. This increased fluid presses on the heart and restricts its pumping action.