Anatomical Studies on Patterns of Branches of Aortic Arch in Korean Native Goat

한국재래산양(韓國在來山羊) 대동맥궁(大動脈弓)의 동맥분지(動脈分枝)에 관한 해부학적(解剖學的) 연구(硏究)

This macroscopic observation was performed to investigate the aortic arch and their branches of the Korean native goat. Ten Korean native goats with black hairs ranging in body weight from 15 to 20kg were used. The findings were based on the latex cast of the vessels made by injection of neoprene latex. The results obtained were as follow; 1. The aortic arch of the Korean native goat gave off only one vessel, the Truncus brachiocephalicus. 2. The Truncus brachiocephalicus gave off the A. subclavia sinistra, the A. subclavia dextra and the Truncus bicaroticus. 3. The A. subclavia sinistra gave off the Truncus costocervicalis, the A. cervicalis superficialis and the A. thoracica interna, and continued as the A. axillaris sinistra. 4. The Truncus costocervicalis sinistra arose from the A. subclavia sinistra in all cases and gave off the A. scapularis dorsalis suprema and the A. cervicalis profunda, and continued as the A. vertebralis sinistra. 5. The branching pattern of the A. subclavia dextra was similar to that of the A. subclavia sinistra except the Truncus costocervicalis. The Truncus costocervicalis dextra was arisen together with the A. subclavia dextra in 8 out of 10 cases, while one of the remaining 2 cases arose as the first branch of the A. subclavia dextra and the other was given off directly from the Truncus brachiocephalicus. 6. The Truncus bicaroticus was continued from the Truncus brachiocephalicus after branching off the A. subclavia dextra in 8 out of 10 cases, but the Aa. carotidas communes sinistra and dextra were directly branched from the Truncus brachiocephalicus without forming the Truncus bicaroticus in the remaining 2 cases.