Abstract
A total of 104 cocks and hens were examined to describe and illustrate the bloodvascular supply of the glandular stomach and the muscular stomach. The nomenclaturein Latin and Japanese is adopted in the present paper and that used by previous authorsis shown in Tables 2 and 3.The blood vessels supplying these organs were as follows.Ventriculus glandularis: A. esophagea recurrens, A. gastrica glandularis dextra, Aa. gastricae glandulares sinistrae, V. gastrica glandularis cranialis, V. gastrica glandu-laris sinistra, and V. gastrica glandularis dextra.Ventriculus muscularis: A. gastrica muscularis sinistra, A. gastrica muscularisdextra, R. gastricus muscularis dorsalis of A. gastrica glandularis dextra, R. gastricusmuscularis intermedius of A. gastrica sinistra, R. gastricus muscularis ventralis of A. hepa-tica sinistra, R. pyloricus of A. hepatica sinistra, V, gastrica muscularis sinistra, V. gastricamuscularis ventralis, V. gastrica muscularis dextra, and R. gastricus muscularis dorsalisof V. gastrica glandularis dextra.All the arteries and arterial branches of the glandular stomach and the muscularstomach are supplied by the Truncus celiacus, which is originated from the Aortaabdominalis under the 6th thoracic vertebra. The main brataches of the arteries whichsupply the glandular stomach perforate the capsule, anastomose with one another, andform an arterial network in the deeper layer of the glandular stomach. Hence, closeconnections are made among those three main arteries in the tissue of the glandularstomach.The arterial and venous branches supplying the muscular stomach are divided intomany small branches on the surface of this organ before perforating tlae tissue of theorgan. Thev anastomose with one another and complete an arterial and a venousnetwork on the surface of the organ. The main arterial branches of the muscular stomachperforate the central tendinous membrane (Centrum tendineum) on both sides of thisorgan. The venous branches of the muscular stornach, however, are originated fromthe marginal alayer than that containing the arterial network in the glandular stomach. By thatvenous network, direct communication is accomplished between the portal circulationand the systemic circulation in this organ of the domestic fowl. This direct communi-cation is recognized easily when some colored material is injected slowly into theV. mesenterica caudalis after the ligation of the V. gastrica glandularis cranialis, theV. portae sinistra, and the V. portae dextra.The interrelationship between the histological structure and the fine blood vascularsupply in the glandular stomach and the muscular stomach will be discussed in a reportwhich is to follow.Table 1. Branches oF Truncus celiacusA. esophagea recurrensA. gastrica glandularis dextra {R. gastricus muscularis dorsalisAa. gastricae glandulares sinistrae ] ".:f;..!: Mt.X""""R. gasfricus muscularis ventralisA. gastrica sinistra " "P"" """"R. pyloricusR. dorsalisgastrica muscularis sinistra R. intermediusR. ventralisTruncus celiacusA. IienalisRr. lienalesA. jejunalisA. hepatica dextra Aa. cysticae Rr. pancreatici (lobus splenicus)A. duodenojejunalis Rr. ductus choledociRr. ductus hepatoentericiA. ileocecalis caudalisRr. pancreatici (lobus dorsalis)pancreaticoduodenalisRr. Pancreatici (lobus tertius et ventralis)R r. d U od e n a l esR. dorsalisA. gastrica muscularis dextraR. ventralisA. ileocecalis cranialis
