PEACHEY L D, PORTER K R
Science. 1959 Mar 13;129(3350):721-2. doi: 10.1126/science.129.3350.721.
A hypothesis, suggested previously by morphological studies, for impulse conduction from the sarcolemma to the contractile material via the sarcoplasmic reticulum is discussed. The relation of reticulum morphology and cell size to speed of contraction in smooth and striated muscle agrees with the hypothesis and thus supports it. Additional support comes from evidence concerning an unusual morphological relationship between the sarcolemma and contractile fibrils in striated muscle of amphioxus.
本文讨论了一个先前由形态学研究提出的假说，即冲动从肌膜经肌浆网传导至收缩物质。平滑肌和横纹肌中肌浆网形态及细胞大小与收缩速度的关系与该假说相符，从而为其提供了支持。另外，文昌鱼横纹肌中肌膜与收缩原纤维之间存在异常形态学关系的证据也为该假说提供了支持。
