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Volume 59 (1982 - 198･･･
- Issue 6 Pages 351-
- Issue 5 Pages 281-
- Issue 4 Pages 215-
- Issue 2-3 Pages 87-
- Issue 1 Pages 1-
Predecessor
Volume 59, Issue 2-3
Displaying 1-8 of 8 articles from this issue
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AN Soo CHAN1982 Volume 59 Issue 2-3 Pages 87-101
Published: 1982
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSThe ultimobranchial gland of the laying chicken consists of groups of C cells interspersed with an extensive network of follicles and branching and anastomosing ducts. The epithelium of the follicular elements varies from squamous to columnar or from stratified squamous to pseudostratified columnar and contains F, mucous, basal and C cells. The predominant F cells, which exhibit microvilli and an occasional cilium, are characterized by the presence of microfilaments, The rough-surfaced endoplasmic reticulum consists of cisternae arranged in well-ordered patterns or randomly distributed. The Golgi complex is moderately developed. Pinocytotic and coated vesicles, mitochondria and free ribosomes are observed. F cells, forming intracellular and intercellular canaliculi or organizing in cords or clusters, are also encountered. Intrafollicular C cells are invariably separated from the lumen by other cell types, however, cells which appear morphologically similar to C cells have been observed to border the lumen directly. The cytoplasm of the C cells is characterized by the presence of secretory granules. Presence of acid phospbatase positive dense bodies, autophagic vacuoles and lipofuscin granules suggests lysosomal involvement in the degradation of material of endogenous origin. Morphological features suggest that the follicular elements, except the intrafollicular C cells, are nonendocrine in nature.
A grant from the Singapore Turf Club is gratefully acknowledged.View full abstractDownload PDF (4383K) -
AKIMICHI TAKEMURA1982 Volume 59 Issue 2-3 Pages 103-135
Published: 1982
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSThe rete mirabile of the maxillary artery was studied in the cat by means of the acryl plastic injection method. Four afferent arterial vessels of the rete were investigated as follows: the lateral retial branches arising from the posterior deep temporal and the inferior alveolar arteries outside the rete, the medial retial branches arising from the middle meningeal and the maxillary arteries, the anterior retial branches arising from the buccal, the anterior deep temporal and the zygomatic arteries, and the intraretial branches arising from the maxillary artery within the rete. The lateral retial branch was similar in its course to the maxillary artery in the crab-eating monkey and man. An arterial circle was formed by the lateral retial branch, the maxillary artery and the posterior part of the rete, and contained the lateral pterygoid muscle and the mandibular nerve. In the formation of the rete, its deep portion around the maxillary artery and nerve was formed by the intraretial branches, its superficial portion by the other afferent vessels, and the intermediate portion by rich anastomoses between both portions. Eight efferent arterial vessels were observed as follows: the external ethmoidal, the meningeal, the extraocular muscular, the lacrimal, a communicating branch with the external ethmoidal, the temporal branch, the interretial artery (which was proper in the cat)and the anastomotic artery (rr. retis of Nomina anatomies veterinaria 1973) which was formed by a confluence of the component branches of the rete. The anastomotic artery played a significant role in the blood supply to the brain, after receiving the anastomotic ramus originating from the middlle meningeal artery instead of the degenerated and obturated remnant of the internal carotid artery.View full abstractDownload PDF (7864K) -
MASATAKE IMAI, TAIZO SHIBATA, NOBUAKI HIGASHI1982 Volume 59 Issue 2-3 Pages 137-139
Published: 1982
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSThe authors made a study of the character of mucous neck cells and the following conclusions were drawn.
1. Mucous neck cells are at the most immature stage of chief cells. They are thus unable to differentiate into epithelial cells of the deeper part of the foveola.
2. Many workers consider that the mucous neck cells and glandular cells of the pyloric and duodenal glands are of the same kind. However, certain mucosubstances in mucous neck cells are different from those in glandular cells of the pyloric and duodenal glands.
3. Only mucous neck cells contain pepsinogen granules.
4. Based on the results in 2 and 3, mucous neck cells are clearly different from glandular cells of the pyloric and duodenal glands.View full abstractDownload PDF (546K) -
AKOYOSHI TAKISAWA, KUNIO IHARA, YOICHI JINGUJI1982 Volume 59 Issue 2-3 Pages 141-165
Published: 1982
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESS1. This study has been done with following three methods to elucidate the fibro-architecture of human temporomandibular joint. (a) Whole joint was embedded in Histosec (Merck) and the sections were made by Reichert-Jung Heavyduty Mikrotome K type with tungsten knife and stained. (b) Small part of joint was sectioned and embedded in styrene and sections were made into requisite direction with glass knife and stained. Then (c) after block (the whole) staining has been done, the film-preparation (Häutchen-präparat) of synovial membrane has been made.
2. Structure of the disc in the temporomandibular joint by the film-preparation and fibro-architecture depending on passive movement of synovial membrane have been reported. (a) Typically stratum synoviale consists of synovial cells, lamina propria synovialis and tela subsynovialis but at the central portion of the disc lamina propria and tela subsynovialis agree with disc fibers. At the peripheral portion of the disc and the part which shifts to articular-cartilage in the peripheral portion lamina propria, tela subsynovialis and disc fibers are present, and lamina propria and tela subsynovialis thicken distinguishably. Especially at the reflection both of them become thickest. (b) Synovial cells become extremely squamous at the part with fibro-cartilage of the disc i. e., at the central portion of the disc but at the part without fibro-cartilage in the peripheral portion of the disc they become cuboidal.
3. Running of the synovial membrane fiber by the film-preparation has been described. (a) Collagen fibers of lamina propria run in concentric circle toward the central portion of the disc. (b) Collagen fibers of tela subsynovialis run radially from the central portion of the disc. (c) Elastic fibers generally run in consentric circle toward the center of the disc but cubic network structure is shown in the anterior extension, bilaminar zone and peripheral of insertion at lateral pterygoid muscle in the medio-peripheral portion of the disc.
4. It was assumed that the structure of the synovial membrane abovementioned provides temporomandibular joint movement including disc movement caused by mechanic-function.View full abstractDownload PDF (5377K) -
Histochemical and Electron Microscopic Cytochemical StudyMASAHIKO NAKAMURA, MASAYA ODA, NORIHITO WATAMABE, NOBUHIRO TSUKADA, YO ...1982 Volume 59 Issue 2-3 Pages 167-179
Published: 1982
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSThe autonomic innervation of parietal cells involved in hydrochloric acid secretion in the fundic mucosa of rat stomach was studied using histochemical and electron microscopic cytochemical techniques.
The gap between the axonal membranes of the cholinergic, probably parasympathetic, nerve and the parietal cell plasma membrane is approximately 700Å, which is the distance corresponding to the muscarinic cholinergic synapse at peripheral level. The acetylcholinesterase (AChE) reaction products are located both on the parietal cell plasma membrane and on the cholinergic nerve endings, and the ultrastructural changes of the parietal cell are in parallel with the changes in histochemical activity of AChE. These findings provide an evidence for supporting the concept that the parietal cell is directly regulated by the parasympahetic nerve.View full abstractDownload PDF (3641K) -
II-SEI WATANABE1982 Volume 59 Issue 2-3 Pages 181-197
Published: 1982
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSGingival mucosae of man and the adult Cebus spella monkey were fixed for 3 hr in modified Karnovsky fixative containing 2.5% glutaraldehyde,2% formaldehyde in 0.1 M sodium phosphate buffer (pH =7.4). The specimens were postfi xed in 1% osmium tetroxide in O.1M sodium phosphate buffer at 4a6deg;C for 2hr, dehydrated in a graded alcohol series and embedded in Epon 812.
Thick sections of 1-3μm and ultrathin sections of 40-80 nm in thickness were cut with glass knives on an LKB ultramicrotome. The thick sections were stained with toluidine blue solution, and the grids were stained with uranyl acetate and lead citrate and examined under a Philips EM-301 electron microscope.
Our observations permitted us to conclude that: 1) both gingival mucosae, of man and the Cebus spells monkey, have lamellar nerve endings;
2) these corpuscles are localized in the papillar space of the epithelium and do not contact closely with the basement membrane;
3) the nerve endings are composed of an afferent fiber which subdivides several times and forms irregular flattened or discoidal expansions;
4) the laminae of the lamellar cells are very thin near the terminal axon and are larger and irregular in shape at the peripheral portion of the corpuscle;
5) the terminal axon shows abundant mitochondria, mylin figures, clear vesicles, and multivesicular bodies;
6) between the axoplasm membrane and adjacent cytoplasmic lamina and between the lamellae, small desmosome type junctions are noted;
7) the cytoplasmic material of the lamellae cells is characterized by the presence of numerous microfilaments, microtubules, mitochondria, rough endoplasmic reticulum, and caveolae.View full abstractDownload PDF (4264K) -
TERUYUKI HOJO, YOSHISUKE HIRAMOTO, TAMIJI NAKASHIMA1982 Volume 59 Issue 2-3 Pages 199-205
Published: 1982
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSThe pars umbilicalis of the human liver was found to be shorter and thicker than that of the Japanese monkey or crab-eating monkey. In the lobus sinister of the human liver, there were two small segments distributed by two thick branches from the pars umbilicalis. The lobus centralis dexter, which was observed in the crab-eating monkey, was not present in the Japanese monkey.View full abstractDownload PDF (1374K) -
JUN WATANABE, MARI Asada-KUBOTA, SHINSUKE KANAMURA, KAZUO KANAI, MOTOK ...1982 Volume 59 Issue 2-3 Pages 207-213
Published: 1982
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSDistribution of labeled material in hepatocytes of intact mouse liver injected via the portal vein with 125I-glucagon was studied. At 3 minutes after pulse injection of the labeled glucagon, the grains were observed mainly over peripheries of hepatocytes, and partially in the sinusoidal lumina and cells. At 10minutes after the injection, the grains were generally scattered over hepatocytes. At 20 minutes, the grains over hepatocyts appeared decreased in number. Thus, in hepatocytes of intact liver, labeled glucagon is internalized more rapidly than in freshly isolated hepatocytes (Barazzone et al.,1980).View full abstractDownload PDF (1169K)
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