The choledochoduodenal junction in the horse—a study of the musculature around the ends of the bile and pancreatic ducts in a species without a gall bladder

Dio, Liberato J. A. Di; Boyden, Edward A.

doi:10.1002/ar.1091430106

Cited by 7 publications

(5 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Comparative anatomical observations of the bile-passage and the duodenal pouch in mammals without a gall-bladder have been described in elephants (Shimizu et al, 1960 ;Kamiya and Fujita, 1966) and in horses (Owen, cited from Siwe 1937 ;DiDio and Boyden, 1962).…”

Section: Bile-passagementioning

confidence: 98%

Liver and Bile-passage of Ganges Dolphin,Platanista gangetica

Yamasaki

Takahashi

Kamiya³

1972

Okajimas Folia Anatomica Japonica

View full text Add to dashboard Cite

Section: Bile-passagementioning

confidence: 98%

Liver and Bile-passage of Ganges Dolphin,Platanista gangetica

Yamasaki

Takahashi

Kamiya³

1972

Okajimas Folia Anatomica Japonica

View full text Add to dashboard Cite

“…Thus distension of the duodenum for a short time, in healthy males, does not cause reflux into the pancreatic duct (Greenfield, Siegel, and De Francis, 1955). Echenberg and Brown (1963) have described the transverse mucosal folds and pouches which are associated exclusively with the termination of the pancreatic duct: they have been noted by many authors, they occur in several species, and their function is clearly to prevent regurgitation of duodenal contents (Dardinski, 1935;Schwegler and Boyden, 1937;Kirk, 1944;Sterling, 1949;Cross, 1956;Di Dio and Boyden, 1962); Stensen's duct is protected in a similar fashion (Reitlinger, 1964). The occasional absence of these folds may increase the likelihood of pancreatitis (Echenberg and Brown, 1963).…”

mentioning

confidence: 99%

A fresh approach to the pathogenesis of pancreatitis.

McCutcheon¹

1968

Gut

129

View full text Add to dashboard Cite

“…To some extent this junction in sheep is similar to that of the horse (DIDIO, 1962) in which the few encircling fibers that surround the bile duct in the proximal part originate as a splitting of the adjacent circular muscle of the gut.…”

Section: Introductionmentioning

confidence: 83%

“…BOYDEN (1955), EICHHORN/BOYDEN (1955) and BOYDEN (1957b), studying the choledochoduodenal junction in different animals, were able to observe that the bile duct is passing through a funnel in the duodenal circular muscle and then runs distally in the submucosa; this funnel is longest in the dog, short in the cat, and very short in the chimpanzee. In man and horse the duct passes through a slit in the circular muscle and no funnel is formed (BOYDEN, 1937;DIDIO, 1962). Presently, in sheep the duct passes through a slit in the circular muscle which is in the form of a muscular ring too short to be called a funnel.…”

Section: Introductionmentioning

confidence: 99%

The Choledochoduodenal Junction in Sheep and Goat

Abdalla

1985

Anat Histol Embryol

View full text Add to dashboard Cite

The choledochoduodenal junction was studied in 15 sheep,S goats and 7 sheep fetuses by maceration technique, microdissection, and by microscopic examination. The bile duct extended from the junction of the hepatic and cystic ducts, entered the duodenum at the beginning of its descending part on the dorsomedial aspect, ran distally in the wall for about 1.5ern and ended with an opening facing distally without raising a papilla. The average length of the bile duct was 8 em j its structure along its course was also described.The wall of the bile duct acquired muscle fibers only when it approached the duodenum. These originated from the longitudinal muscle of the duodenum. As the duct passed through the duodenal circular muscle, the latter split and formed a muscular ring so that the duct at that site was surrounded by two muscle layers. When the duct coursed distally in the submucosa, it was covered with longitudinal muscle bundles on its muscle (of duodenum) surface and thin oblique and circular muscle rings on its mucosal surface and its sides. Towards the distal end of the duct, the muscle fibers on the mucosal surface decreased and finally disappeared as the duct approached the lumen of the duodenum. The fetal material confirmed the findings in the adult.The present results were discussed with the findings reported in other species. The authors believe that the structure of the choledochoduodenal junction in sheep and goat indicates the presence of a sphincter originating from and connecting with the duodenal musculature. The sphincter, therefore, should be influenced by the activity of the duodenal wall, causing flow of bile and pancreatic juices to be intermittent.

show abstract

The choledochoduodenal junction in the horse—a study of the musculature around the ends of the bile and pancreatic ducts in a species without a gall bladder

Cited by 7 publications

References 8 publications

Liver and Bile-passage of Ganges Dolphin,Platanista gangetica

Liver and Bile-passage of Ganges Dolphin,Platanista gangetica

A fresh approach to the pathogenesis of pancreatitis.

The Choledochoduodenal Junction in Sheep and Goat

Contact Info

Product

Resources

About