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The authors have a chance to dissect an elephant. The following memoirs concerning this elephant were brought to us from the owner: Owner: AKABAYASHI Moju Circus Name: Miss MASUMI Age: 7 years old Sex: Female Species: Indian elephant (Elephas maximus L.) Weight: About 2000kg. at healthy time Date of death: 4 o'clock p.m., 17, Jan., 1956 From 2 o'clock p.m. of the 21st, the dissection was carried out. From the point of veterinary anatomy, several interesting records were obtained and are as follows; 1. The lung is connected firmly with the thoracic wall as well as with the diaphragm by connective tissue to large extent. Usually, these attachments of the lung to the surroundings are not observed in the common domestic animals under normal conditions. 2. The lung consists of only one left lobe and two right lobes, and one of the latter is a small intermediate lobe. 3. The left azygos vein enters the coronary sinus of the heart. 4. The arterial ramification from the aortic arch is similar to that of the swine and the dog. That is, the aortic arch sends out a brachiocephalic artery and then a left brachial artery (A subclavia sinistra). The brachiocephalic artery is short and divides into two common carotid arteries and a right brachial artery (A subclavia dextra) at the almost same point. 5. The lobation of the liver is simple at a glance. Only the fissure between the left lateral and the left medial lobe is clear, so that the liver seems to consist of two lobes. But anatomically it is divided into a large left lateral, a small left medial, a central, a right and a caudate lobe without process. 6. The liver has no typical gall-bladder, but a partially bladder-like hepatic duct. This duct opens into the duodenum at about 1m. from the pylorus of the stomach. 7. The spleen manifests the shape like as a long tongue. 8. The small intestine is 17.25m., the large intestine 7.60m. and the caecum 0.8m. in length. The aspect of the intestines is similar to that of the horse. The taenia and the haustra of the large intestine are not so clearly defined as those of the horse. The caecum is found distinctly. 9. The kidney is divided into several distinct lobes. The fissures on the surface of the kidney are not so clear as those of the cattle. 10. The ovary has folds on its surface like as the brain. 11. The uterus consists of neck, body and two obvious horns. A clear ligament (Lig. intercornuale) is found as a septal wall in the cranial portion of the uterine body. 12. The urogenital tract extends from the ischial arch forward to the region between the thighs where it opens. Values and measurements of internal organs obtained are as follows.; Lung Weight: 17.2kg. Left lobe: 69cm. in length and 32cm. in width Right lobe: 71cm. in length and 32cm. in width Intermediate lobe: 20cm. in length and 6cm. in width Heart Weight: 8.15kg. Distance from the left atrio-ventricular orifice to the apex: 24cm. Tongue Length: 52cm. Stomach Weight (including the contents): 6.95kg. The large curvature is 156cm. and the small curvature is 65cm. in length. Depth of the diverticulum: 30cm. Small intestines Length from pylorus to ileo-caeco-colic orifice: 17m. 25cm. Length from pylorus to diverticulum duodeni: 1m. Large intestines Length from ileo-caeco-colic orifice to anus: 7m. 60cm. Length of caecum: 80cm. Liver Weight: 10.1kg. Distance between the right and the left extremity: 62cm. Distance between the upper and the lower extremity, Left lobe: 54cm. Right lobe: 39cm. Spleen Weight: 1.65kg. 133cm. in length and 17cm. in width Pancreas Weight: 760g. Kidney Weight Left: 2030g. Right 1950g. Right kidney: 30cm. in length and 17cm. in width Adrenal gland Weight Left: 65g. Right: 100g. Ovary Weight Left: 40g. Right: 40g. 7cm. in length and 6cm. in width, respectively Uterine tube Left: 18.5cm. in length Right: 21.0cm. in length Uterus Left uterine horn: 36.5cm. in length Right uterine horn: 36cm. in length Lig. intercornuale. 13cm. in length Uterine body (including the uterine neck): 23cm. in length Vagina and vaginal vestibulum Vagina: 33cm. in length Vaginal vestibulum, from hymen to clitoris: 64cm. in length from hymen to external orifice: 75cm. in length
大阪府立大学の論文
1957-01-25

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