File:Cardiac muscle EM03.jpg
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Cardiac Muscle Electron Micrograph
Electron micrograph of parts of of portions of four cat cardiac muscle fibers and a capillary (Cap) in transverse section. This is a historic (1969) EM showing key features in cardiac muscle ultrastructure. Myofilaments (Mfl) are not grouped in discrete myofibrils, but form a single large bundle interrupted only by the eccentric nucleus (Nel) and the numerous mitochondria.
Legend
- Ncl - nucleus.
- Mt - Rows of mitochondria appear to divide the contractile substance into myofibril-like units but, unlike the true myofibrils of skeletal muscle, these branch and rejoin and are quite variable in width.
- Mfl - Myofilaments.
- Cap - Capillary.
Original image X 6,700.
Reference
<pubmed>4891913</pubmed>| PMC2107571
Copyright
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Original article figure (FIG. 1) has been scaled and rotated.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:45, 4 October 2012 | | 849 × 615 (135 KB) | Z8600021 (talk | contribs) | Electron micrograph of portions of four cardiac muscle fibers and a capillary (Cap) in transverse section. Myofilaments (Mfl) are not grouped in discrete myofibrils, but form a single large bundle interrupted only by the eccentric nucleus (Nel) and the nu |
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