Identifier: essentialsofphys00hare (find matches)
Title: Essentials of physiology, arranged in the form of questions and answers, prepared especially for students of medicine
Year: 1899 (1890s)
Authors: Hare, H. A. (Hobart Amory), 1862-1931 Raymond, Joseph H. (Joseph Howard), 1845-1915, ed
Subjects: Physiology
Publisher: Philadelphia, Saunders
Contributing Library: Columbia University Libraries
Digitizing Sponsor: Open Knowledge Commons

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teapsin. According to Kiihne and Roberts the pancreas contains, fourth,a milk-curdling ferment. The four are, therefore, as follows: ainy-lopsin, trypsin, steapsin, and the milk-curdling ferment. At what time is the pancreatic juice poured out ? On the entrance of food into the small intestine coming fromthe stomach. THE LIVER. The anatomy of the liver is so closely concerned in its physio-logical functions that an outline seems unnecessary at this point. Itwill be remembered that the liver is made up of many little liversknown as lobes and lobules, each lobule being a perfect gland initseif. The bloodvessels are derived from two sources, first, thevenous, which enter by means of the vena porta; and which, branch- THE LIVER, 69 ing, give off numerous interlobular vessels or veins forming denseplexuses around the lobules. Branching off from these interlobularvessels are the capillaries which converge to the centre of thelobule, forming elongated meshes, between which are rows of cells.
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Section of lobule of liver of rabbit in which the blood and bile capillaries hav^ beenInjected (after Cadiat). a. Intralobular vein. b. Interlobular veins, c. BiliarysanaJa beginning in fine capillaries. These capillaries on reaching the centre of the lobule form theintralobular vessel or central vein, which again joins together with 70 ESSENTIALS OF HUMAN PHYSIOLOGY. others and forms the radicles of the hepatic veins. The second setof bloodvessels are branches of the hepatic artery which dip downbetween the lobules to nourish the whole gland tissue whatever itmay be. The third set of vessels which are present are known asthe bile-ducts, which, arising from the centre of the lobule joinone another and form the interlobular bile ducts, which anastomoseand finally form the common biliary duct. Fig. 8. J^#

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