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OF THE ORGANIC SYSTEM. 97
mass of glands separating bile from the blood, weighing
four or five pounds.
Fig. 32.
A MAGNIFIED VIEW OF A SECTION OF THE LUNG.
Showing the arrangement of some of the lobules, the communication
of the air-cells in one lobule, and their separation from those of the ad
joining lobule. The ramifications of the blood-vessels in the texture of
the lung, and their course through the air-cells are also seen. 1, 1.
Branches of the pulmonary veins. 2, 2. Branches of the pulmonary
artery.
We a get much clearer idea of the organs of the
body, when we consider each individual —each
portion
villosity, or each follicle, as a distinct organ, performing
its appropriate function. But however minute these
may be, we must go further, and consider each cell as
the final individual, in whom resides the functional
9