La struttura del fegato nella larva e nell'adulto diLampetra planeri

Abstract
The venous and arterial connections don't change during Lampetra planeri metamorphosis. The hepatie structure is constituted in the larva as anastomosed tubules surrounded by spacious sinusoids, and during the metamorphosis transforms itself into a tubular strueture with braid-shaper and extremely lessened sinusoids. In this form the tubule loses the feature of esocrine gland; in effect the cellules are numerous, crowded and bludgeon-shaped and obliterate the central capillary vessel of the tubule. The bilious system is almost completely reduced.

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