Assertion: liver's cell | /r/MadeOf | the blood
Facets:
Source sentences:
text: Therefore, in the lobule there are all the essentials of a secreting gland; that is to say: (1) cells, by which the secretion is formed; (2) bloodvessels, in close relation with the cells, containing the blood from which the secretion is derived; (3) ducts, by which the secretion, when formed, is carried away.