巻号一覧
61 巻 (1984 - 1985)
- 6 号 p. 399-
- 5 号 p. 327-
- 4 号 p. 235-
- 2-3 号 p. 83-
- 1 号 p. 1-
61 巻, 2-3 号
選択された号の論文の11件中1～11を表示しています
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Iwao SATO, Makiichi KOBAYASHI, Yuji NAGUMO, Takeshi MURAKI1984 年 61 巻 2-3 号 p. 83-95
発行日: 1984年
公開日: 2012/09/24
ジャーナル フリーMorphological studies were conducted of the lingual gland of Onychodactylus japonicus. This amphibian shows a different behavior between the earlier stages having gills (characterized by the 60th stage) and the later stage after the completion of metamorphosis with loss of the gills (characterized by the 70th stage). After the 70th stage, this animal lives both in the water and on the land. Its eating habits are consequently different between the 60th and 70th stages.
Many characteristics are found in the lingual glands in Onychodactylus japonicus with poor development of the major salivary glands. Two kinds of granules are found in the cells in the terminal portion of the lingual gland, one being a mucous homogeneous granule (A type) and the other with a central core surrounded by a light halo with a low electron density (B type). Attempts were made to investigate the structure and functions of these granules.抄録全体を表示PDF形式でダウンロード (2703K) -
Iwao Sato, Makiichi Kobayashi, Yuji Nagumo, Takeshi Muraki1984 年 61 巻 2-3 号 p. 97-111
発行日: 1984年
公開日: 2012/09/24
ジャーナル フリーObservations were carried out on the morphology of the lingual gland of Onychodactylus japonicus in the 70th stage (after disappearance of gills). This amphibia goes through double modes of life, with a change in the mode of living after metamorphosis. Salivary glands are also expected to undergo some kind of change. We have already observed the morphology of the lingual gland of this animal in the 60th stage in which the animal lives in water with gills, describing homogeneous granules (Type A) and cored granules (Type B). In the course of time, however, these granules change. In the 70th stage, Type B granules decreased and Type A granules occupied the major portion. This is explained by some changes in the property of the granules probably containing digestive enzymes.抄録全体を表示PDF形式でダウンロード (2746K) -
Saisuke TOMINAGA1984 年 61 巻 2-3 号 p. 113-131
発行日: 1984年
公開日: 2012/09/24
ジャーナル フリーThe middle meningeal artery and its whole ramifications in the rabbit were studied by the acryl injection method. Simultaneously, the stapedial artery presumed to represent an embryological remnant was investigated in 3 cases of the total of 120 examples observed in relation to the branches of this artery. The middle meningeal artery arose from the maxillary artery just distal to the alar canal in most cases, rarely via common trunks between neighboring vessels, and ran superoposteriorly up to the posterior end of the oval foramen, where it gave rise to twigs to the mandibular nerve, the tympanic tensor and the inferior branch to the trigeminal ganglion. The artery entered the petrotympanic fissure, giving off the superior branch to the ganglion within it and the petrosal branch and the superior tympanic artery within the bone tissue. Rarely, the former was not found but the latter. In the above 3 cases, the stapedialartery of the internal carotid artery was found. The petrosal branch ran posteriorly along the minor petrosal nerve, then the facial nerve up to a position above the vestibular fenestra, when it gave rise to the branch to the promontorium and the stapedial m. branch and anastomosed with the stylomastroid artery. The superior tympanic ran posteromedially along the major petrosal nerve, giving rise to the trigeminal ganglionic branch and a thick meningeal branch, up to the genicular ganglion to supply it. The branch to the promontorium and the superior tympanic may correspond to the stapedial artery represented in an embyological pattern. This artery passed between the stapedial crura and forwards beneath the facial nerve to supply the genicular ganglion, anastomosing with the superior tympanic. The main stream of the middle meningeal artery passed superoposteroanteriorly within the groove for this artery, where it gave rise to the anterior and posterior branches which supplied the dura mater on the petrosal part. The parent artery thus ascended in the parietotemporal suture up to the meeting point between the temporal, occipital and parietal bones, where it gave off the temporal muscular branch which emerged onto the extracranial surface to supply the temporal muscle. The main stream of the artery finally hooked downwards to supply the dura mater on the posterior slope of the petrosa and the parafloccular fossa.抄録全体を表示PDF形式でダウンロード (4073K) -
Yukihiko MIYAYAMA, Haruhiko MIYAYAMA, Toyoaki FUJIMOTO1984 年 61 巻 2-3 号 p. 133-151
発行日: 1984年
公開日: 2012/09/24
ジャーナル フリーThe histo-cytochemical characteristics of primordial germ cells (PGCs) in early human embryos were investigated in conjunction with identification of the cells. Employing the periodic acid-Schiff (PAS) reaction, PGCs in the migration stage or in the early settlement stage were clearly distinguished from somatic cells by their content of PAS-positive intracytaplasmic glycogen. The alkaline phosphatase (ALPase) reaction was confirmed to represent a useful method for identifying PGCs throughout their endodermal to settlement stages. The enzyme activity was detectable on the plasma membrane of PGCs, especially in parts associated with other adjacent cells, and also on the outer membrane of mitochondria, the Golgi apparatus and the nuclear envelope of PGCs. Histochemically, the ALPase of PGCs revealed heat-lability and inhibition by levamisole, suggesting that the isozyme was of the liver type. Using the colloidal iron reaction, acid mucin was demonstrated on the surface of PGC which was alcianophilic. This indicated that the plasma membrane of PGC is composed of acid mucin including sialic acid, and also that this method is applicable to the identification of PGCs.抄録全体を表示PDF形式でダウンロード (3354K) -
Shuichi HIRATA, Yoshiaki YASUDA, Toyoaki FUJIMOTO1984 年 61 巻 2-3 号 p. 153-160
発行日: 1984年
公開日: 2012/09/24
ジャーナル フリーMethylmercuric chloride (MMC) induced cleft palate in all ICR mouse fetuses, when given orally as a single dose of 25 mg/kg to the mother at an appropriate day of pregnancy. The critical period of MMC administration to the ICR dams to induce 100% cleft palate in their offspring was from day 10 to 12 of pregnancy (plug day=day 0).
Normal palate closure in the ICR fetus occurred on day 14 of gestation. However, fetuses from dams treated with MMC on day 10 of pregnancy failed in palate closure because the palate shelf horizontalization was delayed so seriously that the bilateral palate shelves could not fuse with each other. This suggests that MMC may act to retard the movement of the palate shelf from the vertical to horizontal plane in ICR mice.抄録全体を表示PDF形式でダウンロード (1453K) -
Toshio YAMASHITA1984 年 61 巻 2-3 号 p. 161-165
発行日: 1984年
公開日: 2012/09/24
ジャーナル フリーThe fine structure of the sphincter and dilator of the pupil of the mouse was studied by light and electron microscopy. The sphincter of the pupil is composed of circumferentially-oriented smooth muscle cells. The dilator of the pupil consists of a large number of myoepithelial cells and a small number of completely-differentiated smooth muscle cells containing no melanosomes. Gap junctions and desmosomes are often observed among the muscle cells of both the sphincter and dilator.抄録全体を表示PDF形式でダウンロード (1200K) -
Masachika SENBA1984 年 61 巻 2-3 号 p. 167-171
発行日: 1984年
公開日: 2012/09/24
ジャーナル フリーThis method can detect hepatitis B surface antigen, copper-associated protein, elastic fibers and collagen fibers by orcein and aniline blue dyes. As a result, this new procedure can lead to a better understanding of the liver diseases on the one slide glass. The method is useful not only for liver tissue but also for connective tissue as well.抄録全体を表示PDF形式でダウンロード (998K) -
Toshio YAMASHITA, Akira TAKAHASHI, Ryohei HONJIN1984 年 61 巻 2-3 号 p. 173-181
発行日: 1984年
公開日: 2012/09/24
ジャーナル フリーThe fine structure, origin, and distribution density of the autonomic nerve endings in the sphincter and dilator muscles of the pupil of the mouse were studied by histochemistry and electron microscopy. Using histochemical methods, the fine nerve plexus in both the muscles shows both catecholamine-positive varicose fibers and acetyicholinesterase-active varicose fibers. In electron micrographs, the axonal varicosities appear as expansions containing many synaptic vesicles. The axonal expansions partly lack the Schwann sheath and directly face the muscle cells. In the sphincter, many of the axonal expansions come in contact with muscle cells, having a gap of 20 to 50 nm in width, while in the dilator a relatively wide space,0.1 to 1.0 μm in width, lies between most of the axonal expansions and muscle cells. The expansions can be classified into two types: Type I having small granular synaptic vesicles, and Type II having agranular vesicles instead of small granular synaptic vesicles. Both Type I acrd II often come in contact with the same smooth muscle cell in the sphincter. In the sphincter, superior cervical ganglionectomy leads to a disappearance of catecholamine-positive nerve endings and an irregular clumping and fragmentation of Type-I expansions followed by their disappearance. Type I in both the sphincter and dilator corresponds to the synaptic ending of the adrenergic fiber originating from the superior cervical ganglion. Type I and II are in the ratio 1: 9 in the sphincter and 3: 2 in the dilator.抄録全体を表示PDF形式でダウンロード (2124K) -
Kazuo WATANABE1984 年 61 巻 2-3 号 p. 183-199
発行日: 1984年
公開日: 2012/09/24
ジャーナル フリーCorticostriatal fibers were traced from the frontal and parietal cortices and from other cortical areas in the rat, using the autoradiographic method. Although the patterns of fiber termination from the frontal and parietal cortices varied in some degree from each other, inhomogeneous distribution was a common feature of both fiber systems. Fibers from the frontal cortex spread themselves throughout the anteroposterior extent of the striatum. In the anterior portion of the striatum, labeling was distributed densely, but there were sparsely labeled patches in the densely labeled region. In the posterior portion, corticostriatal fibers terminated forming bands or patches. Parietostriatal fibers were distributed mainly in the posterior half of the striatum. These terminated densely in narrow bands, which were situated in the dorsolateral portion of this nuclear complex. These results provide good evidence for the heterogeneous organization of the striatum, which is well established in higher animals.抄録全体を表示PDF形式でダウンロード (3305K) -
Keisuke Ohtsuki1984 年 61 巻 2-3 号 p. 201-219
発行日: 1984年
公開日: 2012/09/24
ジャーナル フリーThe arterial distribution of the trigeminal ganglion was investigated in the crabeating monkey by means of the acryl plastic injection method, and the basic and topographical anatomy of the ganglion was also assessed.
1. The ganglion was located mostly in the remarkable impressio trigemini on the anterior surface of the petrosal part of the temporal bone, and the remaining small part of the ganglion extended anteriorly along the superolateral side of the internal carotid artery, with its anterior end reaching up to a position lateral to the posterior clinoid process.
2. Ganglionic branches were derived from the following arterial sources: the marginal tentorial branch, the anterior petrosal branch, the basal tentorial branch and the trigeminal nerve branch of the internal carotid artery; the pontine branch of the basilar artery; and the accessory meningeal branch of the maxillary artery.
3. Ganglionic branches from various vessels formed a network in the triangular plexus, although such a network was scarcely found in the trigeminal capsule and ganglion.
In conclusion, it can be said that the main supply route of the trigeminal ganglion in the crab-eating monkey was the intracranial arterial source, in assistance with the extracranial.抄録全体を表示PDF形式でダウンロード (4163K) -
Yong Li LÜ, Hisashi SAKAI1984 年 61 巻 2-3 号 p. 221-233
発行日: 1984年
公開日: 2012/09/24
ジャーナル フリーThe dorsal motor nucleus of the rat vagus was studied using the Nissl and Klüver-Barrera methods. This nucleus is elongated rostrocaudally, is about 3-4 mm in length and contains about 5,000 cells. It appears fusiform in shape and is subdivided into oral, middle and caudal regions according to cell distribution. These regions constitute one-fifth, two-fifths and two-fifths of the entire length of the nucleus, and the number of cells in each region is about 10%,70%, and 20% of the cell total, respectively. The cells of the nucleus are classified into two distinct types, being either small or medium-sized. Small cells are round or oval in shape, measuring less than 20μm along the long axis and 15μm along the short axis. This type of cell is distributed throughout all regions of the nucleus and represents approximately 60% of all cells. Medium-sized cells are pyramidal or multipolar in shape and measure 20-30μm along the long axis and 15-20μm along the short axis. This type of cell is distributed throughout the central three-fifths of the nucleus and represents approximately 40% of all cells.抄録全体を表示PDF形式でダウンロード (2092K)
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