Muscle activation: the current status.
D000818:Animals; D001001:Anura; D003400:Astacoidea; D002118:Calcium / Q000378:metabolism; D005399:Fishes; D006801:Humans; D008116:Lizards; D008564:Membrane Potentials; D008566:Membranes / Q000378:metabolism; D009119:Muscle Contraction; D009132:Muscles / Q000378:metabolism / Q000502:physiology* / Q000648:ultrastructure; D009210:Myofibrils / Q000648:ultrastructure; D012519:Sarcoplasmic Reticulum / Q000378:metabolism / Q000648:ultrastructure
D002118:Calcium