File:Heart histology 001.jpg

Heart Histology - Purkinje Fibre

• sheep cardiac muscle, transverse section
• Purkinje Fibre.
• Stain: Whipf's polychrome, x40

Purkinje Fibres

• modified cardiac muscle cells. Compared to ordinary cardiac muscle cells:
  • contain large amounts of glycogen.
  • fewer myofibrils.
  • thicker cells.
• extend from the atrioventricular node, pierces the fibrous body, divides into left and right bundles, and travels, beneath the endocardium, towards the apex of the heart.
• bundle branches contact cardiac muscle cells through specialisations similar to intercalated discs.
• conduct stimuli faster than ordinary cardiac muscle cells (2-3 m/s vs. 0.6 m/s).
• discovered in 1839 by Jan Evangelista Purkyně).

Whipf's polychrome staining procedure - used by Dr. Louise Whipf, Veterinary Pathology Laboratory, University of Wisconsin, who originally modified Shorr’s (1941) stain.

Links: Heart Histology | Cardiac AZB Labeled | Cardiac AZB | Cardiac label LS | Cardiac LS | Cardiac label TS | Cardiac TS | Purkinje fibres | Purkinje fibres detail | Histology

Links: Histology | Histology Stains | Blue Histology images copyright Lutz Slomianka 1998-2009. The literary and artistic works on the original Blue Histology website may be reproduced, adapted, published and distributed for non-commercial purposes. See also the page Histology Stains.

Cite this page: Hill, M.A. (2024, April 24) Embryology Heart histology 001.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Heart_histology_001.jpg

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

Original file name: Cardm042wp.jpg

Cite this page: Hill, M.A. (2024, April 24) Embryology Heart histology 001.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Heart_histology_001.jpg

What Links Here?

© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G