Реферат: Lungs (легені)

What important function do our lungs fulfil?
Lungs are a pair of organs which are situated in the chest. They fulfil very important function of vital activity known as respiration. Our lungs are conical in shape. Their apexes project into the neck and their bases rest upon the diaphragm. There is an anterior border behind the middle of the breast bone.
How many lobes do the lungs contain?
There the outer and inner surfaces meet and the borders of the two lungs touch one another. The right lung contains three lobes and the left has two lobes. Each lung is a pleural membrane or the pleura.
What can one see between the two layers of the pleural membrane?

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