Image
Figure Caption
Fig. 2
The atrioventricular junction in ectotherms is not interrupted by an insulating plane.
Picro-sirius red stain for collagen (red) on 10 μm sections of hearts of adult ectotherms showing the atrioventricular canal to be in full communication (+) with the ventricle. l(r)a, left(right) atrium.
Acknowledgments
This image is the copyrighted work of the attributed author or publisher, and
ZFIN has permission only to display this image to its users.
Additional permissions should be obtained from the applicable author or publisher of the image.
Full text @ PLoS One