CONTRACTION-BAND FORMATION IN BARNACLE MYOFIBRILS.
Contractions induced by adenosine triphosphate, in myofibrils isolated from the barnacle, Balanus aquilia, were observed with a phase microscope. The formation of contraction bands was well under way before the A-band came into contact with the Z-membrane. This is in disagreement with the hypothesis that contraction bands are formed when the A-band pushes against the Z-membrane.
D000255:Adenosine Triphosphate; D000818:Animals; D003445:Crustacea; D008853:Microscopy; D008858:Microscopy, Phase-Contrast; D009119:Muscle Contraction; D009132:Muscles; D009210:Myofibrils; D012518:Sarcomeres; D001468:Thoracica
D000255:Adenosine Triphosphate
CRUSTACEA; MICROSCOPY, PHASE CONTRAST; MUSCLES