The membrane systems of the cardiac muscle cell of Munida tenuimana G. O. Sars (Crustacea, Decapoda).
The membrane systems of the cardiac muscle cell of Munida tenuimana G. O. Sars are described. The sarcolemma invaginates at the Z level, forming tubules. Narrow tubules branch off in a longitudinal direction from these transverse and radially arranged tubules, forming a narrow transverse collar at the H level where dyadic and triadic junctions are formed with the sarcoplasmic reticulum.
D000199:Actins; D000818:Animals; D003386:Brachyura / Q000648:ultrastructure*; D009206:Myocardium / Q000648:ultrastructure*; D009210:Myofibrils / Q000648:ultrastructure; D009218:Myosins; D012508:Sarcolemma / Q000648:ultrastructure; D012519:Sarcoplasmic Reticulum / Q000648:ultrastructure
D000199:Actins; D009218:Myosins