巻号一覧
89 巻 (2012)
- 4 号 p. 93-
- 3 号 p. 57-
- 2 号 p. 27-
- 1 号 p. 1-
89 巻, 3 号
選択された号の論文の5件中1～5を表示しています
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Shoichi EMURA, Toshihiko OKUMURA, Huayue CHEN2012 年 89 巻 3 号 p. 57-60
発行日: 2012年
公開日: 2013/02/22
ジャーナル フリーThe dorsal lingual surface of scarlet macaw (Ara macao) was examined by scanning electron microscopy. Macroscopically, the lingual apex of the scarlet macaw had a lip-like shape. Three parts were distinguished in the dorsal surface of the tongue: the apex, body, and root of the tongue. The surface of the lingual apex had many grooves toward lingual root. The surface of the lingual apex was relatively smooth. The central surface of the papillary layer in the lingual apex after removal of the epithelium consisted of numerous dermal papillae, but the papillae were not observed in the lateral region. A pair of openings of the lingual glands was observed in the posterolateral region of the lingual body. The opening of the lingual gland after removal of the epithelium showed more clear structure than before removal. Many conical papillae in the posterior region of the lingual body were observed. The structure of the tongue of the scarlet macaw was different from that of the rainbow lorikeet.抄録全体を表示PDF形式でダウンロード (2181K) -
Shoichi EMURA, Toshihiko OKUMURA, Huayue CHEN2012 年 89 巻 3 号 p. 61-66
発行日: 2012年
公開日: 2013/02/22
ジャーナル フリーThe dorsal lingual surface of the Egyptian rousette bat was examined by scanning electron microscopy. Filiform, fungiform and vallate papillae were observed. The filiform papillae were distributed over the entire dorsal surface of the tongue. The filiform papillae notably differed in morphology by their location on the tongue and could be classified into 5 types: 1) scalelike, 2) small crown-like, 3) giant trifid, 4) large crown-like, 5) conical papillae. The fungiform papillae were present rounded bodies on the anterior 2/3 of the tongue. The Egyptian rousette bat showed the a triangular arrangement of the three vallate papillae, with the apex of the triangle directed posteriorly. These findings indicate that the tongue of the Egyptian rousette bat is similar to that of the large flying fox.抄録全体を表示PDF形式でダウンロード (3698K) -
Akira IIMURA, Takeshi OGUCHI, Masakazu SHIBATA, Masato MATSUO, Yuusuke ...2012 年 89 巻 3 号 p. 67-74
発行日: 2012年
公開日: 2013/02/22
ジャーナル フリーIn a student course of gross anatomy dissection at Knagawa Dental College in 2010, we found an extremely rare case of the horseshoe kidney with circumaortic venous ring in a 43-year-old Japanese male cadaver. In this case, the kidney consisted of three parts: the original kidneys on both sides and an isthmus between them. The location of each kidney was lower than that of the normal kidney. The hili on both sides opened toward the ventral direction, and the ureters descended in front of the isthmus and entered the bladder normally. This horseshoe kidney had original left and right renal arteries that branched from the abdominal aorta. There were also two surplus arteries. There were three renal veins on the left side, and these renal veins formed the circumaortic venous ring. The anatomical and embryological significance of this anomaly and its associated vascular system are discussed. The anatomy and etiology of these anomalous structures are discussed with references in the literature.抄録全体を表示PDF形式でダウンロード (2009K) -
Takashi SHIMOKAWA, Satoru YASUTAKA, Rieko KOMINAMI, Harumichi SHINOHAR ...2012 年 89 巻 3 号 p. 75-81
発行日: 2012年
公開日: 2013/02/22
ジャーナル フリーAxolotls (Ambystoma mexicanum) have the ability to regenerate amputated limbs. The amputation surface is promptly covered by wound epithelium (WE), which is significant for the initiation of limb regeneration. In the present study, we investigated the formation of functional WE by analyzing the migration of WE after amputation. In the center of the amputation surface, epithelial cells migrated from surrounding epidermis to form WE. Therefore, WE around the center of the amputation surface was composed of the cells with dorsal, ventral, anterior and posterior identities, and we tentatively called this WE with radial positional identities, “central WE”. When regeneration was complete, central WE became the epidermis around the bifurcation between the first and second digits. In addition, when the artificial rotation of epidermis was performed before amputation, all examined limbs regenerated normally, and central WE formed the epidermis at the bifurcation between first and second digits, similarly to that in normal regeneration. On the basis of our observations, the most important factor for the initiation of regeneration is considered to be the discontinuity of positional identity existing in WE. It is possible that the location of bifurcation between first and second digits is specified by the positional discontinuity in WE.抄録全体を表示PDF形式でダウンロード (14312K) -
Kyoichi ITO, Satoshi ANDO, Norihiko AKIBA, Yuichi WATANABE, Yasuo OKUY ...2012 年 89 巻 3 号 p. 83-92
発行日: 2012年
公開日: 2013/02/22
ジャーナル フリーThe human hyoid bone supports the base of the tongue and is involved in breathing, chewing, and swallowing as well as in the muscle movements associated with articulation. Accordingly it plays an important bone for a human to live. It is a very interesting organ also in multiple special area, including anatomy, mastication, swallowing, articulation, and also forensic medicine. In the morphological study of the human hyoid bone, there is a comparative anthropological research early in 1900, whereas the metrological research has been little reported later. We first used MDCT, and recorded each organic hyoid locus with a three-dimensional image for three-dimensional morphometry of gender differences, age-related changes, and the morphologic characters of the hyoid bone, and compared them with the results of our predecessors. By measuring the volume of the human hyoid bone, we identified gender difference at high rates, and estimated a certain level of ages based on the ossification at the junction area of the hyoid body and greater horns observed. Our results can be applied in the forensic medicine. By examining 600 cases, atypical horseshoes-shapes were found and the existence of the hyoid bone protrusion was demonstrated at high rates.抄録全体を表示PDF形式でダウンロード (899K)
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