. Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates. FIG. 310.—HEART OF A, Lacerta muralis, AND B, A LARGE Vnranus, SHOWN CUT OPEN ; C, DIAGRAM OF THE REPTILIAN HEART. Ventral view. A,A1, atria ; Ao, dorsal aorta ; Ap, Apl, pulmonary arteries ; Asc, As, subclavians ; Ca, Ca1, carotids ; Gi, postcaval: ./, jugular; RA, root of aorta; tr, Trca, innominate ; Vp, pulmonary vein ; Vs, subclavian vein ; T', V1, ven- tricles ; .7, 2, 1st and 2nd arterial arches ; t, *, right and left aortic arches. In C, the pre- and postcavals are indicated by Ve, Ve, only one precaval being repr
. Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates. FIG. 310.—HEART OF A, Lacerta muralis, AND B, A LARGE Vnranus, SHOWN CUT OPEN ; C, DIAGRAM OF THE REPTILIAN HEART. Ventral view. A,A1, atria ; Ao, dorsal aorta ; Ap, Apl, pulmonary arteries ; Asc, As, subclavians ; Ca, Ca1, carotids ; Gi, postcaval: ./, jugular; RA, root of aorta; tr, Trca, innominate ; Vp, pulmonary vein ; Vs, subclavian vein ; T', V1, ven- tricles ; .7, 2, 1st and 2nd arterial arches ; t, *, right and left aortic arches. In C, the pre- and postcavals are indicated by Ve, Ve, only one precaval being represented. A fibrous cord connects the apex of the ventricle with the peri- cardium in most Lizards. RA RA Anamnia, and this is more especially the case in Amphisbeenians, Snakes, and Crocodiles. The carotid arteries and jugular veins are thus correspondingly elongated. The sinus venosus, which even in the Amphibia—especially. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wiedersheim, Robert, 1848-1923; Parker, W. N. (William Newton), d. 1923. London, Macmillan and co. , limited
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