T. Clark Brelje, Ph.D.
University of Minnesota
Department of Genetics, Cell Biology and Development
6-160 Jackson Hall
321 Church St SE
Minneapolis, MN 55455
Robert L. Sorenson, Ph.D.
University of Minnesota
Department of Genetics, Cell Biology and Development
6-160 Jackson Hall
321 Church St SE
Minneapolis, MN 55455
Each slide is shown with additional information to its right. The image can be changed using any combination of the following commands.
Sidebar
Click on links to move to a specific region.
Click on images to show that view.
Use the toolbar to change the magnification and pan the displayed image.
Mouse
Click to zoom-in
Double-click to zoom-out
Alt-click to zoom-out
Alt-double-click to zoom-out to the entire slide
Drag the image to pan
Keyboard
Shift or ‘A’ key to zoom-in
Ctrl or ‘Z’ Key to zoom-out
Arrow Keys to pan across the image
ESC key to zoom-out to the entire slide
Touch
Tap to zoom-in
Double-tap to zoom-out
Alt-tap to zoom-out to the entire slide
Drag the image to pan
MHS 245 Heart
Purkinje Fibers
Purkinje fibers are specialized cardiac muscle cells that conduct electrical impulses that allow coordinated contraction of cardiac muscle.
This specimen has excellent examples of Purkinje fibers. Examine the inner ventricular wall (the left edge of specimen) beneath the endocardium for clusters of large, lightly stained cells.
Several bundles of Purkinje fibers are seen #1, #2, #3 and #4.
Purkinje fibers are much larger than normal cardiac muscle cells.
