巻号一覧
66 巻, 6 号
選択された号の論文の9件中1～9を表示しています
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Yoshikuni OHTA, Hitoshi OKUDA, Fumihiko SUWA, Shigenori OKADA, Isumi T ...1990 年 66 巻 6 号 p. 301-311
発行日: 1990年
公開日: 2012/09/24
ジャーナル フリーThis paper examines the application of the acryl plastic injection to the preparation of vascular corrosion microcasts for scanning electron microscopy (SEM). The original injection method using acryl plastic was described by Taniguchi, Ohta et al. in 1952 and 1955, under the title of "New improved method for injection of acrylic resin". Three dimensional observations were undertaken in our laboratory on the angiology at the macro- and microscopic levels of various organs from various mammals employing the original method. Based on this extensive experience, an injection method for preparing corrosion microcasts for use in SEM was devised in our laboratory. Microcasts prepared by the present method were able to demonstrate the fine vascular architecture of each organ. In general, although applications for preparing vascular microcasts of isolated and parenchymal organs are not so difficult, the method can be used to be applicable for demonstrating the fine vascular architecture related to or within hard tissues, as well as for investigating the morphological relations between changes of vascular patterns and restorative changes in the surrounding tissues affected by experimental operations. SEM microphotographs are also presented to illustrate actual practical applications.抄録全体を表示PDF形式でダウンロード (4460K) -
Shoji CHIBA, Takao SUZUKI, Daihachiro TAKAHASHI, Tatsuo KASAI1990 年 66 巻 6 号 p. 313-337
発行日: 1990年
公開日: 2012/09/24
ジャーナル フリーThe present case represents the second report of an aberrant azygos lobe, following Adachi's (1940) first case. The authors describe the characteristic features of an azygos lobe observed in the right lung of a 65-year-old man as well as the extra-pulmonary course of the bronchial arteries and veins. The literature on the azygos lobe reported in Japan and the extremely rare cases in which an azygos lobe has been found on the left side, are summarized. Upon dissecting the pulmonary parenchyma, it became clear that the azygos lobe was supplied by definitive segmental branches (B1a and B2a, A1a and A2a, and V1a and V2a) of the tracheobronchial tree and pulmonary vessels. The authors review and summarize the patterns of the segmental bronchi and vessels in the azygos lobe and also discuss the development of this anomaly.抄録全体を表示PDF形式でダウンロード (6705K) -
Yukio YOSHIDA1990 年 66 巻 6 号 p. 339-353
発行日: 1990年
公開日: 2012/09/24
ジャーナル フリーAn anatomical study on the extensor digitorum profundus muscle was made using 832upper limbs from 416 Japanese adults. The separate muscles derived from the extensor digitorum profundus consist of 10 kinds: namely, the extensor pollicis longus, extensor pollicis et indicis accessorius, extensor indicis radialis, extensor indicis proprius, extensor indicis ulnaris, extensor indicis et medii accessorius, extensor medii proprius, extensor annularis proprius, extensor carpi profundus and extensor digiti brevis. The configuration of the muscles (except for the extensor digiti brevis) in the upper limb was classified into 13 types according to their arrangement and insertion. The most frequent type involved coexistence of the extensor pollicis longus and the extensor indicis proprius: it was observed in 664 limbs (79.8%). The next type involved coexistence of the extensor pollicis longus, extensor indicis proprius and the extensor medii proprius: it was observed in 67 limbs (8.1%). It appears that the extensor digiti brevis of man is derived from the most ulnar part of the extensor digitorum profundus which does not migrate proximally.抄録全体を表示PDF形式でダウンロード (4070K) -
Masatake IMAI, Taizo SHIBATA, Keiichi MORIGUCHI, Mitsuji YAMAMOTO1990 年 66 巻 6 号 p. 355-363
発行日: 1990年
公開日: 2012/09/24
ジャーナル フリーThe authors performed histological and histochemical investigations on the so-called cardiac glands and gastric glands of the dog, and compared the data on these glands. The conclusions were as follows: 1. The so-called cardiac glands have a number of parietal cells and cells distributed in the same glandular base contain fine pepsinogen granules. However, these glandular cells are filled with a PAS-positive substance. Accordingly, the so-called cardiac glands are nothing but undifferentiated gastric glands. 2. Due to the deep gastric pits, the outer layer of the mucous membrane in the dear zone is loose, and a distribution of a smaller number of blood vessels can be expected. These facts may demonstrate a pale or clear appearance of the mucous membrane in the same zone. 3. The gastric pits in the dark zone are extremely shallow. Accordingly, the mucous membrane in this area is dense and a distribution of a large number of blood vessels can be expected. This probably produces a dark color, i. e., reddish brown. 4. The chief cells in the glandular base of the clear zone contain a number of fine and coarse PAS-positive granules. These granules also are a violet color with PAS-AB (pH 2.5) stain. This color resulted from sialomucin. The above mentioned facts mean that the clear zone is an undifferentiated region of the gastric glands. 5. The chief cells distributed in the glandular body and base of the dark zone are PAS-negative and contain no sialomucin. Accordingly, the same zone is the differentiated region of the gastric glands. 6. The chief cells of the gastric glands in the cardiac region and clear zone contain a small quantity of weak and strong acid mucopolysaccharides, while those cells in the dark zone surpass the abovementioned cells in the quantity of the same substances. 7. The weak and strong acid mucopolysaccharides were also recognized in the mature chief cells of the cat. However, we could not find any in man, macaque or many other types of animals studied.抄録全体を表示PDF形式でダウンロード (2823K) -
George SEKINE, Tadao OHMORI, Jun KODAMA, Hidetoshi TOH1990 年 66 巻 6 号 p. 365-373
発行日: 1990年
公開日: 2012/09/24
ジャーナル フリーThe present report describes a case of malformation of the kidney, of the type known as horseshoe kidney, in an 83-year-old Japanese female used for student dissection practice. In this case, the kidney consisted of three parts: the original kidneys on both sides and an isthmus between them. The kidneys formed a U-shaped structure as a result of fusion at the inferior poles of the original kidneys. As a whole, the structure presented a typical horseshoe shape. The renal artery system as well as the position of the kidney was almost normal except for a surplus artery into the isthmus. The incidence of horseshoe kidney was estimated to be 0.27% in our department for the period from 1975 to 1988.抄録全体を表示PDF形式でダウンロード (2125K) -
Kazuyuki SHIMADA, Iwao SATO, Atsuyuki YOKOI, Tadashi KITAGAWA, Masahar ...1990 年 66 巻 6 号 p. 375-391
発行日: 1990年
公開日: 2012/09/24
ジャーナル フリーThe filiform papillae of subadult alligator (120 cm 260 cm total length) tongues are examined by scanning electron microscopy and electron microprobe analysis. The filiform papillae form cone-like structures and are observed over the entire dorsal surface of a relatively long tongue with a round tip. The filiform papillae are composed of four layers; outer, upper intermediate, lower intermediate, and basal layer. The keratinized epithelial cells are analysed by the sulphur (S), and nitrogen (N) content levels. The S content is higher than that of N. In the anterior side of the filiform papillae, this content is lower than that in the posteriors. The S content is highest of all at about 2μm in depth from the surface. These results suggest that the use of S concentration measurements may serve to be an effective tool for a simple, offhand evaruation of keratinization.抄録全体を表示PDF形式でダウンロード (4470K) -
Masamichi KUROHMARU, Takao NISHIDA, Yoshihiro HAYASHI, Shigeto YAMASHI ...1990 年 66 巻 6 号 p. 393-403
発行日: 1990年
公開日: 2012/09/24
ジャーナル フリーUltrastructural changes of developing spermatids and associated Sertoli cells during spermiogenesis in the kowari, Dasyuroides byrnei, were observed by transmission electron microscopy. The early round spermatid in the kowari showed an acrosomal vacuole containing sparsely distributed material. The acrosomal vacuole grew to some degree and then collapsed upon itself and decreased in size. After the diminution of the vacuole, flattening and condensation of the nucleus began. At this period, the manchette, nuclear ring and caudal plaque appeared and the ectoplasmic specialization of the Sertoli cell developed in association with the acrosomal region of the spermatid head. Microtubules of the manchette were arranged obliquely or perpendicular to the long axis of the spermatid. As the spermatid developed further, the nucleus displayed a horseshoe shape in cross section and was flattened in longitudinal section. The ectoplasmic specialization which was the most developed at this period appeared like horns protruding from the spermatid nucleus. Immediately before spermiation, the flattened aspect of the spermatid head contacted an apical process of the Sertoli cell. The Sertoli cell apical process extended the spermatid head into the lumen. Long tubulobulbar complexes appeared in the Sertoli cell, after the ectoplasmic specialization had dissociated.抄録全体を表示PDF形式でダウンロード (4284K) -
Iwao SATO, Masataka SUZUKI, Masataka SATO, Tooru SATO, Seiichiro INOKU ...1990 年 66 巻 6 号 p. 405-415
発行日: 1990年
公開日: 2012/09/24
ジャーナル フリーTwelve male 9-week-old Wistar rats were used in this study. Intrinsic (transverse, longitudinal and vertical) and extrinsic (genioglossus) muscles of the tongue were examined using histochemical methods. Intrinsic muscle consists mainly of intermediate and red fiber types; in contrast, there is an increase in the white fiber type in extrinsic muscle. The predominant fiber types, red and intermediate, in the intrinsic muscle are smaller than those of the extrinsic muscle. Among the intrinsic muscles, the longitudinal muscle fibers show a tendency to be smaller in size than the others. The continuous movement of the intrinsic muscle fibers influences the shape of the tongue and contributes to versatile activity in chewing. In contrast, extrinsic muscle of the rat tongue reflects powerful movements in mastication, swallowing and squeaking owing to the increased percentage composition of the white fiber type.抄録全体を表示PDF形式でダウンロード (2080K) -
Ruey Ting LIN, Akimichi TAKEMURA1990 年 66 巻 6 号 p. 417-431
発行日: 1990年
公開日: 2012/09/24
ジャーナル フリーAn investigation was made of the facial artery in 3 heads of the lion (Panthers s. Felis leo) in the possession of the authors' department. The heads were injected with acryl plastic via the common carotid artery and were examined from the standpoint of the comparative anatomy. Five sides of these 3 heads were prepared to vascular corrosion casts and the remaining side to a dessection specimen preserved in formalin solution. The facial artery of the lion arose independently from the anteroinferior wall of the external carotid artery between the styloglossus and digastricus muscles and between the origins of the lingual and the posterior auricular arteries at a position where the external carotid curved laterally anterior to the tympanic bulla. The facial artery gave rise to the mandibular glandular branch posterosuperiorly immediately after its origin and passed forwards medial to the insertion of the masseter along the superior margin of the digastricus and bent anteroinferiorly giving off the sublingual glandular branch after the divergence of a thick, masseteric branch. The facial artery reached the posterior margin of the mylohyoideus muscle, where it gave rise to the submental artery anteroinferiorly from its inferior wall. The submental artery passed forwards along the inferior margin of the mandible, giving off the digastric and the mylohyoid branches, up to the intermandibular synchondrosis, where it anastomosed with the opposite fellow after giving off the genioglossal branch. The main stream of the facial artery, after giving off the submental artery, reached the face through the facial vascular notch of the mandible. The facial artery passed anterosuperiorly along the anterior margin of the masseter muscle, giving off the buccal, the cutaneous and the mandibular marginal branches, up to a position posterior to the oral angle, where it terminated to the inferior labial and the posterior superior labial arteries. Similarities between the lion and the cat were found in terms of both the origin and ramifications. However, the inferior labial artery was more developed than that of the cat, whereas the peripheral ramifications of the submental artery were underdeveloped and supplemented by the lingual artery.抄録全体を表示PDF形式でダウンロード (5056K)
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