The Position of the Nutrient Foramen and Direction of the Nutrient Canal in the Long Bones of the Madder-Fed Pig.
The Position of the Nutrient Foramen and Direction of the Nutrient Canal in the Long Bones of the Madder-Fed Pig.
复制标题
茜草饲喂猪长骨营养孔的位置和营养管的方向。
作者：
Carrick G. Payton
滋养管的外部开口，通常被称为滋养孔，具有特定的位置，并且对于每个骨，滋养管具有一定的恒定方向。由于文献中对这两点的混淆，我想强调的是，孔的位置和管的方向是滋养动脉的两个不同的和独立的现象，并且可能是独立机制的结果。现有的文献数量很少，主要涉及运河的方向，给人的印象是研究人员假设这两种现象都是由这个方向引起的。本文将对滋养孔的位置和滋养管的走向分别讨论。在这篇论文中，我们使用了前两篇论文中关于疯牛病饲养猪长骨骨干和骨骺生长的数据（1，2）。
THE external opening of the nutrient canal, usually referred to as the nutrient foramen, has a particular position and the canal a certain direction constant for each bone. Because of confusion of these two points in the literature on the subject, I wish to stress the fact that the position of the foramen and the direction of the canal are two distinct and separate phenomena of the nutrient artery, and may be the result of independent mechanisms. The literature available is small in amount, deals mainly with direction of the canal, and gives the impression that investigators have assumed that both phenomena are caused by this direction. In this account the position of the nutrient foramen and the direction ofthe canal will be dealt with separately. Throughout this paper use has been made of the data contained in two previous papers on the growth of the diaphyses and epiphyses of the long bones in the madder-fed pig (1, 2).