神経支配を重視した爬虫類体幹筋の比較解剖学的研究

爬行动物躯干肌肉的比较解剖学研究，重点是神经支配

• 批准号: 61570006
• 负责人: 佐藤 達夫
• 金额: $ 1.22万
• 依托单位: Tokyo Medical and Dental University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1986
• 资助国家: 日本
• 起止时间: 1986 至 无数据
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-61570006/
• 关键词: 体幹筋; 神経支配; 脊髄神経一次分岐; 肉眼解剖学; 爬虫類

今回の科学研究費で購入した爬虫類は、オオトカゲ2種、テグートカゲ1種,ワニ1種である。トカゲ計9匹は漬責固定後に従来の方法で比較解剖学的検索に供した。これらに加えて、すでに入手ずみであったワニ1種を継続的に解剖した。剖出には今回講入したコルポスコピーに若干の改造を加えて用いた。またワニ6匹については適当な大きさの生体が入手できたため、HRPを用いた脊髄内運動ニューロンの体部位局在性を検索後に体幹筋を剖出することとした。現在実験を継続中であり、第1例より良好な染色結果を得て、その結果を筋系の分類と対比させるに至っている。肉眼解剖学的検索の要旨は次の通り。肋間神経は例外なく浅深2主枝に分れる。浅枝は恒常的な皮枝を含むとともに外腹斜筋系統を支配する。浅枝を基準にして外腹斜筋を同定すると、2種のトカゲではいわゆる深外腹斜筋が欠如する。深枝は内肋間筋・横筋・直筋の各系統を支配するが、皮枝の有無は種差が大きい。横筋系深層枝は浅層枝より近位で分岐し、浅層を貫くことはない。肋間神経浅枝が哺乳類・鳥類の外側皮枝に、同深枝が肋間神経本幹に相当することはほぼ確実である。トカゲの腸肋筋神経は、鳥類の肋骨挙筋枝のように肋間神経の最近位部から分れる種と、ワニのように前枝後枝の中間枝的な位置を占める種があるが、いずれもワニと異なり皮枝を含まない。肋間神経本幹と後枝領域の間の体壁背外層に存在しうるこうした神経の独立性については、哺乳類の外肋間筋枝と合わせて今後考察を進めたい。後枝外側枝は主に皮枝からなるが、背腹に隔たった2か所で同皮枝が筋層を貫く種のあることが分った。筋と神経の層構成や一次分岐のように、哺乳類においてはその同一性の基準にさえなりうる要素について、爬虫類ではきわめて種差が大きいため、安易な文献的比較は慎まなければならないと共に、なお一層の検索が必要であると考えられた。

This time's scientific research funds have purchased 2 species of reptiles, 1 species of Ooto, 1 species of Tegurato, and 1 species of. The method of comparative anatomy is used to investigate the relationship between the nine species and the fixation. This is the first time I've ever seen one. A number of modifications were made to the system. 6. The body of a human being begins to move, and HRP is used to move, and the body of a human being begins to move, and the body of a human being begins to move. Now, in the first example, good staining results were obtained, and the results were classified into two groups. The main points of macroscopic anatomy search are reversed. The intercostal nerve is divided into two main branches: shallow and deep. The shallow branch is dominated by the outer diagonal system. The shallow branch is the same as the outer abdominal oblique tendon, and the two kinds of oblique tendons are different. Deep branches are dominated by various systems of ribs, transverse ribs and straight ribs, and there is a large difference between the skin branches and the seeds. The deep branches of the transverse tendon system diverge from the shallow branches, and the shallow branches penetrate the deep branches. The superficial branches of the intercostal nerve are closely related to the outer skin branches of mammals and birds, and the same deep branches are closely related to the trunk of the intercostal nerve. The most proximal part of the intercostal nerve of birds is divided into two parts: the first branch and the second branch. The intercostal nerve trunk and the posterior branch area exist in the outer layer of the body wall. The intercostal nerve trunk and the posterior branch of the mammalian intercostal nerve are connected. The lateral branches of the back branch are divided into two parts: the main branch is divided into two parts: the back branch is divided into two parts. The structure of muscle layer is divided into two parts, mammals are divided into two parts, mammals are divided into three parts, reptiles are divided into two parts, reptiles are divided into two parts, reptiles are divided into three parts, reptiles are divided into two parts, reptiles are divided into three parts, reptiles are divided into two parts, reptiles are divided into three parts, reptiles are divided into three parts, reptiles are divided into four parts, reptiles are divided into three parts, reptiles are divided into four parts, rep

项目成果

佐藤達夫: 脳と神経. 39/5. (1987)

佐藤达男：大脑和神经。39/5。