title: INTERACTION BETWEEN CALCIUM AND HEPARIN IN HEART MUSCLE FUNCTION.
mesh_terms: D000109:Acetylcholine; D000818:Animals; D001001:Anura; D001769:Blood; D002110:Caffeine; D002118:Calcium; D004837:Epinephrine; D004878:Ergotamine; D006493:Heparin; D006584:Hexamethonium Compounds; D009119:Muscle Contraction; D009132:Muscles; D009206:Myocardium; D009638:Norepinephrine; D010600:Pharmacology; D010827:Physiology; D010830:Physostigmine; D011479:Protamines; D012106:Research; D012701:Serotonin; D013431:Sulfates; D014403:Tubocurarine
chemical_list: D006584:Hexamethonium Compounds; D011479:Protamines; D013431:Sulfates; D012701:Serotonin; D002110:Caffeine; D006493:Heparin; D010830:Physostigmine; D000109:Acetylcholine; D004878:Ergotamine; D002118:Calcium; D014403:Tubocurarine; D009638:Norepinephrine; D004837:Epinephrine
keywords: ACETYLCHOLINE; BLOOD; CAFFEINE; CALCIUM; EPINEPHRINE; ERGOTAMINE; EXPERIMENTAL LAB STUDY; FROGS; HEPARIN; HEXAMETHONIUM COMPOUNDS; MUSCLE CONTRACTION; MYOCARDIUM; NOREPINEPHRINE; PHARMACOLOGY; PHYSIOLOGY; PHYSOSTIGMINE; PROTAMINES; SEROTONIN; SULFATES; TUBOCURARINE