5 0 0 0 小胸筋の停止についての解剖学的研究
- 著者
- 吉村 英哉 望月 智之 宗田 大 菅谷 啓之 前田 和彦 秋田 恵一 松木 圭介 中川 照彦
- 出版者
- 日本肩関節学会
- 雑誌
- 肩関節 (ISSN:09104461)
- 巻号頁・発行日
- vol.31, no.2, pp.217-219, 2007 (Released:2008-01-30)
- 参考文献数
- 10
Previous studies reported a presumably unusual bony attachment of the pectoralis minor muscle. However, less attention has been given to the insertion of the continuation to the glenohumeral joint. The purpose of this study was to evaluate the frequency of this abnormal insertion of the pectoralis minor muscle, and also to investigate the relation between this continuation and the capsule. 81 anatomic specimen shoulders from 41 cadavers were dissected. The insertion of the pectoralis minor tendon to the glenohumeral joint was carefully investigated. The pectoralis minor tendon ran beyond the coracoid process and extended to the superior portion of the glenohumeral joint in 28 out of 81 specimens (34.6%). The continuing insertion divided the coracoacrominal ligaments into two limbs. The continuation was more variable, and consisted of the whole tendon in 6, the middle part in 5, the lateral part in 15, and the medial part in 2 specimens. Furthermore, the pectoralis minor tendon inserted to the posterosuperior border of the glenoid in 6, to the greater tuberosity in 7, and both to the glenoid and the greater tuberosity in 15 specimens. The prevalence of the anomalous insertion of the pectoralis minor tendon revealed to be as high as 34.6% in the present study. This may suggest that the pectoralis minor tendon plays an important role in the stability of the glenohumeral joint.
3 0 0 0 英語学習意欲に関する実態調査--テキストマイニングによる分析から
- 著者
- 前田 和彦 津村 修志 小磯 かをる
- 出版者
- 大阪商業大学商経学会
- 雑誌
- 大阪商業大学論集 (ISSN:02870959)
- 巻号頁・発行日
- vol.6, no.2, pp.77-90, 2010-07
- 被引用文献数
- 1
2 0 0 0 棘下筋こそが腱板断裂において最も重要な断裂腱である
- 著者
- 松木 圭介 菅谷 啓之 前田 和彦 森石 丈二 望月 智之 秋田 恵一
- 出版者
- 日本肩関節学会
- 雑誌
- 肩関節 (ISSN:09104461)
- 巻号頁・発行日
- vol.31, no.2, pp.213-215, 2007
- 被引用文献数
- 7
The purpose of this study was to examine the anatomy of the infraspinatus including the orientation of muscle fibers and the insertion to the greater tuberosity. Ninety-three shoulders from 52 cadavers were minutely dissected. After resection of the acromion and removal of the coracohumeral ligament, the infraspinatus muscle was carefully investigated macroscopically. After the orientation of muscle fibers was confirmed, the muscle was peeled from the proximal part to the distal part and the insertion of the infraspinatus tendon was examined. In 4 shoulders, muscle fibers were completely removed in water and the direction and insertion of the tendon were examined. The infraspinatus muscle originated both from the inferior surface of the spine of the scapula and the infraspinatus fossa, and inserted to the greater tuberosity. The muscle fibers originated from the spine were running dorsally and horizontally to the greater tuberosity. On the other hand, the fibers from the fossa were running ventrally and diagonally to the greater tuberosity. These fibers were merged at the insertion. The infraspinatus tendon had vast insertion to the greater tuberosity, and the most anterior part of the tendon was inserted to the most anterior portion of the greater tuberosity, bordering on the most anterior part of the supraspinatus tendon. The supraspinatus tendon is regarded as the most affected tendon in rotator cuff tears. However, the results of this study suggested that the infraspinatus tendon could be involved in the majority of rotator cuff tears. The infraspinatus may act not only in external rotation but also in abduction, because the infraspinatus tendon was inserted to the most anterior part of the greater tuberosity.
- 著者
- 加賀田 哲也 小磯 かをる 前田 和彦
- 出版者
- 大阪商業大学商経学会
- 雑誌
- 大阪商業大学論集 (ISSN:02870959)
- 巻号頁・発行日
- vol.3, no.2, pp.1-11, 2007-08
1 0 0 0 棘上筋停止部に関する解剖学的検討
- 著者
- 前田 和彦 菅谷 啓之 新井 隆三 森石 丈二 望月 智之 吉村 英哉 松木 圭介 秋田 恵一
- 出版者
- 日本肩関節学会
- 雑誌
- 肩関節 (ISSN:09104461)
- 巻号頁・発行日
- vol.31, no.2, pp.209-211, 2007
- 被引用文献数
- 5
It is generally believed that the supraspinatus tendon plays an important role in the shoulder function. However, precise anatomy of the supraspinatus tendon has not been well described. The purpose of this study was to investigate the anatomy of the supraspinatus tendon. 57 cadavers (103 shoulders) were used for this study. The clavicle and humerus were cut off at their proximal parts. After resection of the acromion, the coracohumeral ligament was carefully removed. In some specimens, the infraspinatus was completely removed from the humerus to observe the overlapping portion of the supraspinatus and infraspinatus. The supraspinatus muscle and its origin were carefully investigated macroscopically. In 4 shoulders, muscle fibers were completely removed to examine the direction and insertion of the supraspinatus tendon in detail. The supraspinatus muscle fibers originated from the spine of the scapula and the supraspinatus fossa, and they were running toward and attached to the thickest tendinous portion, which was located at the anterior part of the supraspinatus muscle. This tendinous portion was strongly attached to the most anterior portion of the greater tuberosity adjacent to the bicipital groove or at the lesser tuberosity (21.3%). Another part of the supraspinatus, which was located posteriorly, was attached to the greater tuberosity adjacent to the articular cartilage as a thin membrane. The insertion of the supraspinatus tendon revealed to be the most anterior portion of the greater tuberosity and the lesser tuberosity. These results suggested that the supraspinatus tendon worked more efficiently as an abductor of the shoulder joint with the arm externally rotated than internal rotation.
1 0 0 0 小胸筋の停止についての解剖学的研究
- 著者
- 吉村 英哉 望月 智之 宗田 大 菅谷 啓之 前田 和彦 秋田 恵一 松木 圭介 中川 照彦
- 出版者
- 日本肩関節学会
- 雑誌
- 肩関節 (ISSN:09104461)
- 巻号頁・発行日
- vol.31, no.2, pp.217-219, 2007
Previous studies reported a presumably unusual bony attachment of the pectoralis minor muscle. However, less attention has been given to the insertion of the continuation to the glenohumeral joint. The purpose of this study was to evaluate the frequency of this abnormal insertion of the pectoralis minor muscle, and also to investigate the relation between this continuation and the capsule. 81 anatomic specimen shoulders from 41 cadavers were dissected. The insertion of the pectoralis minor tendon to the glenohumeral joint was carefully investigated. The pectoralis minor tendon ran beyond the coracoid process and extended to the superior portion of the glenohumeral joint in 28 out of 81 specimens (34.6%). The continuing insertion divided the coracoacrominal ligaments into two limbs. The continuation was more variable, and consisted of the whole tendon in 6, the middle part in 5, the lateral part in 15, and the medial part in 2 specimens. Furthermore, the pectoralis minor tendon inserted to the posterosuperior border of the glenoid in 6, to the greater tuberosity in 7, and both to the glenoid and the greater tuberosity in 15 specimens. The prevalence of the anomalous insertion of the pectoralis minor tendon revealed to be as high as 34.6% in the present study. This may suggest that the pectoralis minor tendon plays an important role in the stability of the glenohumeral joint.
1 0 0 0 棘下筋こそが腱板断裂において最も重要な断裂腱である
- 著者
- 松木 圭介 菅谷 啓之 前田 和彦 森石 丈二 望月 智之 秋田 恵一
- 出版者
- 日本肩関節学会
- 雑誌
- 肩関節 (ISSN:09104461)
- 巻号頁・発行日
- vol.31, no.2, pp.213-215, 2007 (Released:2008-01-30)
- 参考文献数
- 6
- 被引用文献数
- 14
The purpose of this study was to examine the anatomy of the infraspinatus including the orientation of muscle fibers and the insertion to the greater tuberosity. Ninety-three shoulders from 52 cadavers were minutely dissected. After resection of the acromion and removal of the coracohumeral ligament, the infraspinatus muscle was carefully investigated macroscopically. After the orientation of muscle fibers was confirmed, the muscle was peeled from the proximal part to the distal part and the insertion of the infraspinatus tendon was examined. In 4 shoulders, muscle fibers were completely removed in water and the direction and insertion of the tendon were examined. The infraspinatus muscle originated both from the inferior surface of the spine of the scapula and the infraspinatus fossa, and inserted to the greater tuberosity. The muscle fibers originated from the spine were running dorsally and horizontally to the greater tuberosity. On the other hand, the fibers from the fossa were running ventrally and diagonally to the greater tuberosity. These fibers were merged at the insertion. The infraspinatus tendon had vast insertion to the greater tuberosity, and the most anterior part of the tendon was inserted to the most anterior portion of the greater tuberosity, bordering on the most anterior part of the supraspinatus tendon. The supraspinatus tendon is regarded as the most affected tendon in rotator cuff tears. However, the results of this study suggested that the infraspinatus tendon could be involved in the majority of rotator cuff tears. The infraspinatus may act not only in external rotation but also in abduction, because the infraspinatus tendon was inserted to the most anterior part of the greater tuberosity.
1 0 0 0 ホンシメジ(Lyophyllum shimeji)の生物種
- 著者
- 前田 和彦 小池 歩 越智 友也 向山 博之 寺下 隆夫 北本 豊 会見 忠則
- 出版者
- 日本きのこ学会
- 雑誌
- 日本きのこ学会誌 (ISSN:13487388)
- 巻号頁・発行日
- vol.16, no.3, pp.105-108, 2008
- 参考文献数
- 19
- 被引用文献数
- 2
ホンシメジと称されるきのこの二核株12菌株とハタケシメジの2菌株のmt SSU rDNAのV4領域の塩基配列を用いた分子系統解析を行ったところ,ホンシメジと称される菌株が,2つのクラスターに分別された.これらの,異なるクラスターに属する菌株のmt SSU rDNAのV4領域の塩基配列の違いが生物種の違いによるものなのかどうかを調べるため,二核菌糸体をプロトプラスト化し,それを再生することにより,一核株の取得を試みた.その結果,Cluster 1に属する菌株から5種類,Cluster 2に属する菌株から2種類の交配型の異なる菌株を分別した.それらを相互に交配させたところ,Cluster 1に属する菌株とCluster 2に属する菌株は,いずれの組み合わせにおいても不和合であった.以上の結果から,mt SSU rDNAのV4領域の塩基配列の違いは,生物種を反映しており,ホンシメジと称されるきのこの中に形態が非常に似通った2つの生物種が存在する可能性が示唆された.