. The anatomy of the domestic animals. Veterinary anatomy. 622 BLOOD-VASCULAR SYSTEM OF THE HORSE on a curved crest, the crista terminalis, whicli indicates the junction of the primi- tive sinusreuniens of the cinlii-vo witli the atrium proper, and corresponds wnth the sulcus terminalis externallw' The ojienings of the vena? cavse are valveless. A ridge, the intervenous crest (Crista int(»rvenosa),- projects dowTiward and forward from the dorsal wall just in front of the opening of the posterior vena cava; it tentls to direct the flow of blood from the anterior vena cava to the atrio-ventricul
. The anatomy of the domestic animals. Veterinary anatomy. 622 BLOOD-VASCULAR SYSTEM OF THE HORSE on a curved crest, the crista terminalis, whicli indicates the junction of the primi- tive sinusreuniens of the cinlii-vo witli the atrium proper, and corresponds wnth the sulcus terminalis externallw' The ojienings of the vena? cavse are valveless. A ridge, the intervenous crest (Crista int(»rvenosa),- projects dowTiward and forward from the dorsal wall just in front of the opening of the posterior vena cava; it tentls to direct the flow of blood from the anterior vena cava to the atrio-ventricular .i40.—Left Side of H ., Left atrium; Aii. s., left auricle P, papillary muscles; 1, 2, great cardiac vi of foetus: 4> 4. openings of pul: aortic Piiliitdriary vein v. V, V, bicuspid valve: V. s., left ventricle: M, M, moderator bands; P, I and circumflex branches of coronarj- arteries; 3, position of foramen ovale 1 (chiefly cut away); o. atrio-ventrieular orifice; ff, arrow points toward opening. The fossa ovalis is a diverticulum in the septal wall, at the point of entrance of the ])osterior vena cava, hounded laterally In" a concave margin (Limbus fossiB ovalis). The fossa is the r(>mnant. i_>f an opening in the septmn, the foramen ovale, through which the two atria conummicate in the foetus. ' The crista terminalis is shown, but not marked, in Fig. 545; it is almost opposit* (anterior) to the intervenous crest. The sulcus terminalis is commonly indistinct except near the venffi cavic. - .\lso termed the tubercle of 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 Sisson, Septimus, 1865-1924. Philadelphia Saunders
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectveterinaryanatomy
