Eyona systemic artery yakhe yankulu emzimbeni yi-aorta. Lo ke ngowona mthambo mkhulu emzimbeni othatha igazi elicocekileyo elimpontshwe yintliziyo lilise emzimbeni. Kule aorta ke kumile amasetyana ee-arteries axananazileyo. Kanti kwakula masetyana ee-arteries axananazileyo, kumile ezinye imfikimfelane zee-arteries. Singathi xa sizijonga zizisizukulwana se-aorta esibizwa ngokuba zii-arterioles.