The contractile mechanism in obliquely striated body wall muscle of the earthworm, Lumbricus terrestris.
D000818:Animals; D000845:Annelida / Q000166:cytology*; D004721:Endoplasmic Reticulum; D008854:Microscopy, Electron; D009119:Muscle Contraction; D009132:Muscles / Q000166:cytology*; D009210:Myofibrils