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The junction between the foregut and midgut occurs directly below the major duodenal papilla. [3]: 274 The major duodenal papilla projects less than a centimetre into the lumen of the duodenum. [4] It appears rounded and is often covered by a fold on the uppermost side of the papilla; that is, the side which receives contents from the stomach. [4]
Dogs have ear mobility that allows them to rapidly pinpoint the exact location of a sound. Eighteen or more muscles can tilt, rotate, raise, or lower a dog's ear. A dog can identify a sound's location much faster than a human can, as well as hear sounds at four times the distance. [41] Dogs can lose their hearing from age or an ear infection. [42]
The common duct then opens medially into the descending part of the duodenum at the major duodenal papilla. The common duct usually measures 2-10mm in length. [1] The ampulla of Vater is an important landmark halfway along the second part of the duodenum marking the transition from foregut to midgut. [citation needed]
The minor duodenal papilla is contained within the second part of the duodenum. It is situated 2 cm proximal to the major duodenal papilla, and thus 5–8 cm from the opening of the pylorus. The gastroduodenal artery lies posterior. [1]
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English: Skeleton of a dog: A – Cervical or Neck Bones (7 in number).B – Dorsal or Thoracic Bones (13 in number, each bearing a rib).C – Lumbar Bones (7 in number).D – Sacral Bones (3 in number).
Miller died in 1960, and the first edition of The Anatomy of the Dog was published posthumously in 1964, [1] with George C. Christensen and Howard E. Evans as co-authors. [2] Evans and Christensen also co-authored the second edition, published in 1979, retitled as Miller's Anatomy of the Dog. [3]
They blend into the surrounding tissue and are fixed in position (for example, the retroperitoneal section of the duodenum usually passes through the transpyloric plane). The retroperitoneal regions include the oral cavity, esophagus, pylorus of the stomach, distal duodenum, ascending colon, descending colon and anal canal. [citation needed]