Heart and Blood Vessels of a Turtle Small 237×320 Medium 473×640 Large 757×1024 Download Tiff Original 1774×2400 | (589.1 KB) Description Heart and blood vessels of the turtle. Ad, right auricle; As, left auricle; Ao.d, right arch of the aorta; Ao.s, left arch of the aorta; Ap, dorsal aorta; C, carotids; Ap, pulmonary arteries. Keywords Reptile, turtle heart Galleries Reptile Anatomy Source: Beach, Fredrick Converse The Encyclopedia Americana (New York, NY: The Americana Company, 1903)