There are multiple artists (at least 3) that use the name 'Aorta'
The most famous of which were a psychedelic band from Chicago who were active in the late 1960's - early 1970's. The band members were alumni of other Chicago garage/psych acts, including New Colony Six
The band's self titled first LP 'Aorta' - Columbia, is regarded as a minor psych classic & one of the best major label releases of that period & peaked at #167 on the Billboard charts. Read more on Last.fm