Dependence of the contractile activation of skinned cardiac cells on the sarcomere length.
D000818:Animals; D002110:Caffeine / Q000494:pharmacology; D002118:Calcium / Q000378:metabolism; D009200:Myocardial Contraction / Q000187:drug effects; D009206:Myocardium / Q000648:ultrastructure; D009210:Myofibrils / Q000502:physiology* / Q000648:ultrastructure; D051381:Rats; D012508:Sarcolemma; D012519:Sarcoplasmic Reticulum / Q000378:metabolism
D002110:Caffeine; D002118:Calcium