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Volume 81 (2004)
- Issue 6 Pages 119-
- Issue 5 Pages 85-
- Issue 4 Pages 57-
- Issue 2.3 Pages 33-
- Issue 1 Pages 1-
Predecessor
Volume 81, Issue 2.3
Displaying 1-4 of 4 articles from this issue
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Takafumi WATANABE, Yoshinao HOSAKA, Etsuko YAMAMOTO, Hiromi UEDA, Pras ...2004 Volume 81 Issue 2.3 Pages 33-38
Published: 2004
Released on J-STAGE: January 18, 2008
JOURNAL FREE ACCESSThe Golgi tendon organ (GTO) is an encapsulated fusiform mechanoreceptor siding in the musculotendinous junction of many animal species. Inhibitory function of afferent nerve fibers distributed from nearby motor units, the organ responds to active tension exerted onto the muscle. The morphological features of the equine GTO have not yet been elucidated. Additionally, there is some controversy regarding to the existence of the GTO in the equine superficial digital flexor tendon (SDFT). Therefore, immunohistochemistry and immunoelectron microscopy using alcian blue (pH 2.5) staining and the silver-enhanced colloidal gold method were carried out to determine both the location and characteristics of the GTO at the musculo-tendinous junction of the SDFT. A GTO with a fusiform structure of approximately 3 mm in length was found in the tendinous part. The lumen of the GTO was divided into compartments by septal cells. Each compartment contained collagen fibrils, nerve fibers and Schwann cells. This is the first report of the equine GTO.View full abstractDownload PDF (215K) -
Shoichi EMURA, Daisuke HAYAKAWA, Huayue CHEN, Shizuko SHOUMURA2004 Volume 81 Issue 2.3 Pages 39-44
Published: 2004
Released on J-STAGE: January 18, 2008
JOURNAL FREE ACCESSThe dorsal lingual surfaces of an adult tiger (Panthera tigris altaica) was examined by macroscopical and scanning electron microscopical observations. Filiform, fungiform and vallate papillae were observed. The filiform papillae were distributed over the entire dosal surface of the tongue. The fungiform papillae were present rounded bodies, and more densely distributed on the lingual apex. There were 4 vallate papillae in total on borderline between the lingual body and lingual radix. Each papilla was surrounded by a groove. No foliate papillae were seen on the dorsal surface. Openings of the glandular ducts on the regions of the vallate papillae were found.View full abstractDownload PDF (329K) -
Iwao SATO, Masataka SUNOHARA, Ryuji UENO, Shyunji YOSHIDA2004 Volume 81 Issue 2.3 Pages 45-48
Published: 2004
Released on J-STAGE: January 18, 2008
JOURNAL FREE ACCESSThe mylohyoid nerve (MN) displays several branches in the posterior, intermediate, and anterior region of the mylohyoid muscle (MM) as it courses on the internal surface of the mandibular body. Branches in the intermediate region were found in 66% of the cases (272 out of 413 sides). In the submandibular triangle, one or two large branches of the MN communicated with the lingual nerve at submandibular triangle and submental triangle in 1.45% of the cases (6 out of 413 sides). These distributions of nerve supply are an important in the operations of radical neck dissection on the submandibular triangle.View full abstractDownload PDF (218K) -
Kazuhiro KURIHARA, Iwao SATO2004 Volume 81 Issue 2.3 Pages 49-56
Published: 2004
Released on J-STAGE: January 18, 2008
JOURNAL FREE ACCESSIn the development of the human mandible, the process of bone calcification, distribution and expression of tenascin-C and -X in the mental symphyseal region are unknown. The purpose of this study was to determine the distribution of these extracellular matrices in the connective tissue around calcified tissues located on the mental symphyseal region of the human fetus during development through histological and radiographical studies.
The radiographic density increased from 16 weeks to 24 weeks gestation in all examined regions; in contrast, the diameter of muscle fiber in the suprahyoid muscles (digastric anterior and geniohyoid muscles) inserted into the inner mental symphyseal region increased from 24 weeks gestation. The extracellular matrices (tenascin) were shown to have a different distribution in the mental symphyseal region of the human fetus at each stage. These different distributions of tenascin-C and -X were found around the epithelium and the endomysium of the mental symphyseal region, and affect the specific formation of the mandible during ossification with hyoid muscle development in human fetus.View full abstractDownload PDF (253K)
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