title: [Vascularization of the sinoatrial segment in the heart conduction system in bovine and canine hearts] ].
abstract: Vascularisation of the conductive heart musculature was investigated by means of the serial coronorography and injective-corrosive method in bovine and canine hearts. The S-A system of the bovine heart was in 50% of the investigated hearts was supplied by the anterior left by the anterior right sinus artery (Arteria nodus sinuatrialis anterior sinistra), and in 30% of the cases by the anterior right sinus artery (Arteria nodus sinuatrialis anterior dextra). Both anterior sinus arteries vascularize the S-A bovine heart system in 20% of the investigated cases. The S-A canine heart system, in 50% of the investigated cases, receive vascularization from the anterior left sinus artery, from the right anterior artery in 40% of the cases, and only in 10% of the investigated hearts is the S-A system supplied by the right and left posterior sinus arteries (Arteria nodus sinuatrialis posterior dextra et sinistra). The S-A system vascularisation of the conductive heart musculature is not conditional by the type of the arterial vascularisation of the heart.
authors.affiliation: Institut za anatomiju, Medicinski fakultet, Sarajevo.
authors.forename: Fehim
authors.initials: F
authors.lastname: Ovcina
mesh_terms: D000818:Animals; D002417:Cattle / Q000033:anatomy & histology*; D017023:Coronary Angiography; D003331:Coronary Vessels / Q000033:anatomy & histology*; D004285:Dogs / Q000033:anatomy & histology*; D012849:Sinoatrial Node / Q000033:anatomy & histology*