. The biology of the frog. Frogs. XV THE CIRCULATORY SYSTEM 265 walled simis venosiis; at the two anterior angles of the sinus \.\\Qprecavaiveins, or anteiior vence cavce, enter; the poste- '. cana. —%^!^^^^^^^ ctu^. Fig. 72.—The heart of a frog cut open and seen from the ventral side. a, a', bristle passed into the left carotid trunk; , auriculo-ven- tricular valves; b,b', bristle passed into the left systemic trunk; c,c', bristle in left pulmo-cutaneous trunk; , carotid artery; , carotid gland; cart, bulbus cordis (conus arteriosus of some au


. The biology of the frog. Frogs. XV THE CIRCULATORY SYSTEM 265 walled simis venosiis; at the two anterior angles of the sinus \.\\Qprecavaiveins, or anteiior vence cavce, enter; the poste- '. cana. —%^!^^^^^^^ ctu^. Fig. 72.—The heart of a frog cut open and seen from the ventral side. a, a', bristle passed into the left carotid trunk; , auriculo-ven- tricular valves; b,b', bristle passed into the left systemic trunk; c,c', bristle in left pulmo-cutaneous trunk; , carotid artery; , carotid gland; cart, bulbus cordis (conus arteriosus of some authors) ; , carotid trunk; , left auricle; , lingual artery; , longi- tudinal or spiral valve ; , pulmo-cutaneous trunk ; , open- ing of pulmonary veins; , right auricle; , sinu-auricular aperture; , inter-auricular septum; v,v', valves; vt, ventricle. (From Parker and Hasvvell's Zoology.) rior apex receives the large postcaval \€m, or posterior vena cava. In front of the anterior margin of the sinus is the pulmonary vein, which empties into the left 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 Holmes, Samuel J. (Samuel Jackson), 1868-1964. New York, The Macmillan company;[etc. ,etc. ]


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectfrogs, bookyear1906