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Volume 82 (2005)
- Issue 4 Pages 111-
- Issue 3 Pages 79-
- Issue 2 Pages 31-
- Issue 1 Pages 1-
Predecessor
Volume 82, Issue 3
Displaying 1-5 of 5 articles from this issue
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Hirohiko KAKIZAKI, Masahiro ZAKO, Takashi NAKANO, Ken ASAMOTO, Osamu M ...2005 Volume 82 Issue 3 Pages 79-82
Published: 2005
Released on J-STAGE: January 12, 2008
JOURNAL FREE ACCESSThis study was performed to illustrate and discuss the significance of fibrous connective tissue between the Müller's muscle and the palpebral conjunctiva. Nine upper eyelids of 6 Oriental cadavers were microscopically examined; ages at death ranged from 72 to 91 years. Tissue of the posterior lamella of the upper eyelid was removed without the orbital septum and orbital fat. Removed eyelids were incised perpendicularly at the center of the eyelid. After pretreatment, sliced sections were stained with Hematoxylin and Eosin and examined microscopically. A thick fibrous connective tissue was found to exist between the Müller's muscle and the palpebral conjunctiva. The connective tissue continued proximally to the intermuscular transverse ligament and was distally attached to the posterior site of the upper aspect of the tarsus. All cases showed infiltration of lymphocytes from the conjunctiva; however, these were completely blocked by the fibrous connective tissue and never reached Müller's muscle. This connective tissue supports eyelid traction and is a natural barrier for the Müller's muscle against conjunctivitis.View full abstractDownload PDF (113K) -
Shunji YOSHIDA, Taisuke KAWAI, Koichiro OKUTSU, Takashi YOSUE, Hitoshi ...2005 Volume 82 Issue 3 Pages 83-88
Published: 2005
Released on J-STAGE: January 12, 2008
JOURNAL FREE ACCESSThe lingual canal with foramen displays different appearances on the internal surfaces of mandible as confirmed by macroscopic observation and computerized tomography (CT). The lingual canal was observed in the inside of mental region run to the outside of lingual foramen, which is extend internally from mandibular canal in right and left sides of the mandible in cadavers (13 sides out of 88 sides) and in dry skulls (43 out of 94 sides) examined. The spinal foramen connected with mental canal occurred at the midline of mandible in 6 cases (6 out of 47 cases) in dry skulls. In this small foramen, the inferior alveolar artery give some branches to the inside of mental region at the anterior mandible and which may be run pass through the lingual canal to the lingual foramen, where they emerge to enter the mylohyoid or anterior belly of digastric muscles. The observations of these are important considerations for surgical placement of dental implants in the region in the mandible.View full abstractDownload PDF (185K) -
Yoichi NAKAMURA, Shuang-Qin YI, Akira IIMURA, Hayato TERAYAMA, Munekaz ...2005 Volume 82 Issue 3 Pages 89-94
Published: 2005
Released on J-STAGE: January 12, 2008
JOURNAL FREE ACCESSTwo cases of the horseshoe kidney in Japanese cadaver were reported in this paper. The kidneys and their associated vessels in the retroperitoneal cavity were carefully examined, and the histological examination of the isthmus was performed. In Case 1, four arteries arose from the abdominal aorta. One right and two left renal arteries were distributed to the apical, upper, middle and posterior regions of the kidney, respectively, and the artery of isthmus entered the lower segments and the isthmus. In Case 2, six arteries arose from the abdominal aorta. Among three arteries arose from the inferior end of the aorta and entered the lower segments and the isthmus. Histological study revealed that the isthmuses consisted of collecting tubes, glomeruli and urinary tubules and fibrous connective tissue. The incidence of the horseshoe kidney during the dissecting practice at Tokyo Medical University in a period of 24 years from 1980 to 2003 was estimated to be 0.16% (2 out of the 1,219 cadavers). The anatomical and embryological significance of this anomaly and its associated vascular system were discussed. And the histology of the parenchymal structure of the isthmus in the horseshoe kidney containing either fibrous connective tissue or renal parenchyma was also analyzed in this report.View full abstractDownload PDF (199K) -
Iwao SATO, Ryuji UENO, Taisuke KAWAI, Takashi YOSUE2005 Volume 82 Issue 3 Pages 95-102
Published: 2005
Released on J-STAGE: January 12, 2008
JOURNAL FREE ACCESSThe inferior alveolar artery, vein and nerve send some branches to the molar teeth via the mandibular canal to the mental foramen. The present study attempted to define the presence and course of the mandibular canal in the mandible with the alveolar process by macroscopic cadaveric dissection and computerized tomography (CT) in order to provide information that might prevent injuries to vessels and nerves at risk during root canal treatment.
We identified the position of the mandibular canal within a 30% ratio of the distance from inferior border of mandible to the apices of the root for 39 out of 131 sides (mesial root of first molar, 20%; distal root of first molar, 22.6%; mesial root of second molar, 27.8% and distal root of second molar, 47%) on panoramic X-ray observation. In one cadaver (male, 64 years old), the root apex of the second molar was in close proximity to the upper bony mandibular canal. Macroscopic dissection and computerized tomography showed that the main trunks of the inferior alveolar artery, vein, and nerve were in tight contact with the apex of the second molar. These observations of the anatomic course of the mandibular canal will be important to consider during root canal treatment of mandibular teeth.View full abstractDownload PDF (540K) -
Nobuyuki NAKAMURA, Fumioki YASUZUMI2005 Volume 82 Issue 3 Pages 103-110
Published: 2005
Released on J-STAGE: January 12, 2008
JOURNAL FREE ACCESSReinke crystalloid (CR)s are rod or corn shaped structures present in the interstitial cells (Leydig cell) of human testis. Due to existing controversies and because of their importance in histological studies, we decided to reevaluate their staining behavior with various dyes. Earlier it has been shown that hematoxylin and eosin dyes do not stain CRs even though their protein nature remains undisputed. In the present study, sections of testicular tissues embedded in glycol-methacrylate (GMA) showed that hematoxylin binds to CRs non-specifically and eosin stains them specifically. The reasons for stainability and/or non stainability of CRs with hematoxylin, eosin and other dyes are discussed.View full abstractDownload PDF (387K)
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