What is latch? New ideas about tonic contraction in smooth muscle
- PMID: 2668329
- DOI: 10.1007/BF01739965
What is latch? New ideas about tonic contraction in smooth muscle
Abstract
Smooth muscles have traditionally been classified as phasic or tonic, the tonic muscles being those which maintain a steady tension indefinitely with a low consumption of energy. Until ten years ago it was considered that the differences between smooth muscle types reflected different innervation or excitation-contraction coupling. However, recent work makes it clear that the contractile apparatus itself is adapted in tonic muscles.