摘要
本文应用微血管铸型技术和酶消化方法,在扫描电镜下观察了犬腹直肌内的微血管形态。肌内微动脉近于垂直状穿入肌束,束内毛细血管与肌纤维平行排列,可见毛细血管前括约肌区,毛细血管间多相互交通形成梯状吻合网,连接相邻毛细血管的吻合通道有局部膨大。本文还讨论了肌内微血管形态特点的功能意义。
The microvasculature of the rectus abdominis muscle in dogs was observed under scanning electron microscope. The specimens were treated by vascular corrosion east and enzymic digestive methods. Some new results had been obtained.The intramuscular arterioles penetrate the muscular fasciculus with almost right angle. The capillaries go along the myofibers oriented parallel to each other and arrange fascicularly. The morphologically distinct precapillary sphincters are apparent at the original region of the capillaries. There are abundant anastomosing channels between the capillaries which constitute ladder-like microvascular networks encircling the myofibers. Sometimes, the calibre was partial enlarged in the anastomosing channel, which may be beneficial to store of the blood oxygen.The physiological significance of the intramuscular microvasculature was discussed.
出处
《解剖学报》
CAS
CSCD
北大核心
1990年第4期346-349,共4页
Acta Anatomica Sinica
基金
国家自然科学基金
关键词
骨骼肌
微血管
扫描电镜
Rectus abdominis muscle
Microvasculature
Anastomosis Scanning electron microscope
