Figure 1: (A) A photograph of the mature camel heart showing the right auricle (long arrow), right atrium (arrow head), Vena cava (VC), the right ventricle (RV) and the Apex of the heart (short arrow). (B) A photograph of the mature camel heart after defattening showing the opened right atrium (RA), the location of SAN (short arrow), Vena cava (VC), terminal crest (single arrow head), the muscle pectinate (double arrow heads) and coronary artery (long arrow), right ventricle (RV), left ventricle (LV).