1 The greater sac (or general cavity of the abdomen), represented in red in the diagrams above. 2  The lesser sac (or omental bursa), represented in blue. The lesser sac is divided into two omenta:  The lesser omentum (or gastrohepatic) is attached to the lesser curvature of the stomach and the liver.
As a lessee, you can choose to buy out your current leased vehicle, lease another car (either from the same brand or try something new), or simply return the car and walk away. (For more on leasing see The Beginner's Guide to Leasing).
There is no universally correct answer here because it depends on the rental company. High end companies like Hertz may keep a car 6 months while low-end car rental companies like Enterprise might keep the cars 12-18 months.