Proventriculus of a marine annelid: muscle preparation with the longest recorded sarcomere.
D000818:Animals; D000845:Annelida / Q000033:anatomy & histology / Q000166:cytology / Q000502:physiology; D004594:Electrophysiology; D008564:Membrane Potentials; D008854:Microscopy, Electron; D009119:Muscle Contraction; D009124:Muscle Proteins; D009132:Muscles / Q000166:cytology / Q000502:physiology; D012623:Seawater
D009124:Muscle Proteins