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. Author manuscript; available in PMC: 2023 Sep 18.
Published in final edited form as: Auton Neurosci. 2013 Dec 23;181:37–48. doi: 10.1016/j.autneu.2013.12.010

Figure 3.

Figure 3.

CGRP-IR axons and terminals in the atria.

All-in-focus projections at the regions indicated by A, B, and C in the right atrium and A1, B1, and C1 in the left atrium in Figure 1A and 1B, respectively. Detailed structure of CGRP-IR axons in different atrial regions showed similar patterns. Multiple single axon fibers formed terminal end-nets with free endings in the epicardium and myocardium. Arrows: branching points; arrow heads: free endings. Scale bar: 50μm.