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A isthmus it's a portion of land which enables unite a peninsula with a continent or link two continents . The term comes from the Latin word isthmus, in turn derived from the Greek isthmós.

The isthmus are strips of land that link two larger sectors of land through the sea . In this way, they become the only way to unite the two regions by land.

It is usual that, by action of human being , the isthmus is crossed by a channel . These engineering works are carried out to facilitate shipping : having the possibility of crossing the isthmus by boat, the route is shortened, since it is not necessary to border the continent or the peninsula. The channels, in this framework, create a direct passage between those seas that the isthmus is responsible for separating.

He isthmus of Panama , for example, separates the Atlantic Ocean of the Pacific Ocean . It extends about 700 kilometers, with a width ranging from 50 to 200 kilometers .

At isthmus of Panama the Panama Canal , a waterway opened in 1914 which allows to pass from Caribbean Sea (Atlantic Ocean ) to Pacific Ocean and vice versa. This work , developed from a system of locks, revolutionized international trade by facilitating exchanges.

It should be noted that the idea of isthmus also appears in the anatomy . He brain isthmus , in this framework, is the part of said set of organs where the cerebellum and the brain meet. He isthmus of the jaws , meanwhile, is the opening between the pharynx and mouth.

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