A Diagram of the Heart of a Reptile Small 218×320 Medium 435×640 Large 697×1024 Download Tiff Original 1633×2400 | (415.1 KB) Description A diagram of the heart of a reptile. Labels: 1, Pericardium. 2, Single ventricle. 3, Left auricle. 4, Right auricle. The arrows show the direction of the blood flow. Keywords heart, Reptile Galleries Reptile Anatomy Source: Cutter, Calvin First Book on Analytic Anatomy, Physiology and Hygiene, Human and Comparative (Philadelphia: J. B. Lippincott & Co., 1875) 127
