File:Cardiac muscle EM01.jpg: Difference between revisions

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Cardiac Muscle Electron Micrograph

Electron micrograph of parts of three cat cardiac muscle fibers and an adjacent capillary in longitudinal section. This is a historic (1969) EM showing key features in cat cardiac ventricular muscle ultrastructure. Only the intercalated disc and some cross-striations can typically be seen in the light microscope histology slides.

Legend

In D - Intercalated disc, the two lower cells are joined end to end by a typical steplike intercalated disc.
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.
Lp - Lipid droplets somewhat distorted in specimen preparation are found between the ends of the mitochondria.
Cap - Capillary.

Original image X 15,000.

Links: EM Image | EM Image cells labeled | HM Practical - Cardiac Histology

Reference

Fawcett DW & McNutt NS. (1969). The ultrastructure of the cat myocardium. I. Ventricular papillary muscle. J. Cell Biol. , 42, 1-45. PMID: 4891913

Copyright

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Original article figure (FIG. 1) has been scaled and rotated.

Cite this page: Hill, M.A. (2024, May 19) Embryology Cardiac muscle EM01.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Cardiac_muscle_EM01.jpg

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	11:52, 6 August 2012		1,072 × 735 (231 KB)	Z8600021 (talk \| contribs)	==Cardiac Muscle EM== Electron micrograph of parts of three cat cardiac muscle fibers and an adjacent capillary (Cap) in longitudinal section. The two upper cells are joined end to end by a typical steplike intercalated disc (In D).Rows of mitochondria (

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@@ Line 1: / Line 1: @@
-==Cardiac Muscle EM==
+==Cardiac Muscle Electron Micrograph==
-Electron micrograph of parts of three cat cardiac muscle fibers and an adjacent capillary (Cap) in longitudinal section. The two upper cells are joined end to end by a typical steplike intercalated disc (In D).Rows of mitochondria (Mt) appear to divide the contractile substance into myofibril-like
+Electron micrograph of parts of three {{cat}} cardiac muscle fibers and an adjacent capillary in longitudinal section. This is a historic (1969) EM showing key features in cat cardiac ventricular muscle ultrastructure. Only the intercalated disc and some cross-striations can typically be seen in the light microscope histology slides.
-units but, unlike the true myofibrils of skeletal muscle, these branch and rejoin and are quite variable in width. Lipid droplets (Lp) somewhat distorted in specimen preparation are found between the ends of the mitochondria. X 15,000.
+===Legend===
+* '''In D''' - Intercalated disc, the two lower cells are joined end to end by a typical steplike intercalated disc.
+* '''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.
+* '''Lp''' - Lipid droplets somewhat distorted in specimen preparation are found between the ends of the mitochondria.
+* '''Cap''' - Capillary.
+Original image X 15,000.
+{{Cardiac muscle EM}}
 ===Reference===
-<pubmed>4891913</pubmed>| [http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2107571 PMC2107571]
+{{#pmid:4891913}}
 {{JCB}}
+Original article figure (FIG. 1) has been scaled and rotated.
+{{Footer}}
+[[Category:Cardiovascular]] [[Category:Cat]] [[Category:Heart]] [[Category:Electron Micrograph]]