Summerbell D
J Embryol Exp Morphol. 1977 Oct;41:137-59.
The wing-bud shows zero regulation following removal of a whole slice of the proximal-distal axis from stage 22 or later. Prior to this it is possible that it may show some regulation. Some of the apparent regulation may be explained by the way in which the limb grows. The bud never shows perfect size regulation or morphallaxis. The proximal-distal axis of the bud between shoulder and wrist expands uniformly from stage 20.
从第22期或更后期移除近端-远端轴的一整片切片后，翅芽显示出零调节。在此之前，它可能会表现出一些调节。一些明显的调节可能可以通过肢体生长的方式来解释。芽从未表现出完美的大小调节或形态再生。从第20期开始，芽在肩部和腕部之间的近端-远端轴均匀扩展。
