CIL:39011 - http://cellimagelibrary.org/images/39011
Description: Confocal image of a sea squirt heart. The sea squirt heart is a tube made of a single layer of muscle cells. The contractile elements are the long striations stained red and the nuclei are also red. The green spots indicate gap junctions between the cells, which facilitate the conduction of electrical impulses through the heart, thus coordinating its contraction.
Author: David Becker
Licensing: Attribution-NonCommercial-NoDerivs 2.0 UK: England & Wales (CC BY-NC-ND 2.0 UK)