. An analytical compendium of the various branches of medical science, for the use and examination of students. Anatomy; Physiology; Surgery; Obstetrics; Medicine; Materia Medica. GALL-BLADDER, 113 lobulus qiiadratus, constitutes the porta or gateway of the liver. An elongated ridge, running from the lobulus spigelii outwardly,^ is called the lobulus caudatus; in the angle between the lobulus spi- gelii and the right lobe of the liver, is a deep fissure for the passage of the ascending vena cava.^ There arefijur sets of vessels for the liver. The hepatic artery is a branch of the coeliac, appr
. An analytical compendium of the various branches of medical science, for the use and examination of students. Anatomy; Physiology; Surgery; Obstetrics; Medicine; Materia Medica. GALL-BLADDER, 113 lobulus qiiadratus, constitutes the porta or gateway of the liver. An elongated ridge, running from the lobulus spigelii outwardly,^ is called the lobulus caudatus; in the angle between the lobulus spi- gelii and the right lobe of the liver, is a deep fissure for the passage of the ascending vena cava.^ There arefijur sets of vessels for the liver. The hepatic artery is a branch of the coeliac, approaches the liver at the transverse fissure, and divides into two or three large branches previous to entering it. The portal vein collects the blood from all the chylopoietic vis- cera, and upon reaching the transverse fissure, divides into two large branches, called the right and left sinuses. The hepatic duct, commencing by fine branches in the interior of the liver, is about the size of a small quill, and is also included with the two last vessels by the capsule of Glisson in the transverse fis- sure. The hepatic veins commence also by capillaries in the liver. The branches collect and form three large trunks, whose course is backwards towards the posterior notch of the liver. These trunks appear more like channels lined by a thin venous coat, than the ordinary veins. They empty into the ascending vena cava as it is passing through the fissure formed between the lobulus spigelii and the right lobe. The structure is best exhibited by tearing the liver ; this shows a granulated arrangement, and each of these granules is usually called a lobule. Each consists of a terminal branch of the portal vein, he- patic artery, hepatic duct, and hepatic Fig. 97. vein, and in it the bile is primitively secre- ted (see Physiology). The aggregation of these acini, is by means of cellular tis- sue, called the paren- chyma, which may be considered as a continuation of Glis- son's capsule. GALL
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