The myocardial band.
Francisco (Paco) Torrent-Guasp, a Spanish cardiologist working in De'nia, Alicante, discovered that the complex structure of the ventricular myocardium is due to a double-loop helical orientation of a single muscular band that extends from the pulmonary artery to the aorta, with a 180-degree twist in its middle part. He predicted the twist-untwist motion of the ventricles and suggested that this is due to agonist-antagonist mechanics of the ventricular band segments.
Ballester
Manel
M
University of Lleida, Barcelona, Spain. mballesterr@comll.cat
Ferreira
Ana
A
Carreras
Francesc
F
D006321:Heart / Q000033:anatomy & histology* / Q000502:physiology*; D006352:Heart Ventricles / Q000033:anatomy & histology; D006801:Humans; D018485:Muscle Fibers, Skeletal / Q000502:physiology; D009206:Myocardium; D016276:Ventricular Function