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- n. Plural form of saccule.
Sorry, no etymologies found.
These saccules are of equal size, and the appendix arises from between them, instead of from the apex of a cone.
Here the two saccules, which in the second type were uniform, have grown at unequal rates: the right with greater rapidity than the left.
Eventually, adhesions and scar tissue "glue" together localized areas of the tiny saccules of alveoli (small cells containing air in the lungs) so they no longer expand to fill with air, nor are they able to completely empty of residual air.