Raymond Vieussens

Vieussens is remembered for his pioneer work in the field of cardiology, and his anatomical studies of the brain and spinal cord.

Vieussens is credited as being the first physician to give accurate descriptions of the left ventricle and several blood vessels of the heart.

This structure is also known as "Vicq d'Azyr's centrum", named after Félix Vicq-d'Azyr (1746–1794), who provided a later, more detailed description.

This collateral blood supply reduces ischemia and protects that part of myocardium from complete necrosis.

During his lifetime, Vieussens was known for his controversial views on human physiology, which speculatively went beyond what the scientific evidence would have sanctioned at that time.