Abstract
ABSTRACT The heart wall of Anaspides tasmaniae consists of a single-layered epicardium and a single-layered myocardium. The myocardial ultrastructure is advanced. The cardiac sarcomere has a full set of bands, and an M-line is present. The sarcolemma invaginates, mainly at Z-band levels, to form clefts and T-tubules. The abluminal Tz,-tubules penetrate deeply and are partly filled by epicardial processes. These reach far into the tubules and form desmosomes with the sarcolemma at Z-band levels. Longitudinal T-tubules combine with the sarcoplasmic reticulum to form interior couplings at H-band levels. Peripheral couplings are often found at this band level. Contractile elements are absent from the anterior and the posterior aorta and from the lateral arteries.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.