18+ Heart Anatomy Pulmonary Veins. There are typically four pulmonary veins, two draining each lung the superior pulmonary veins take an oblique inferomedial course whereas the inferior pulmonary veins run horizontally peripherally before taking a more vertical course. The largest pulmonary veins are the four main pulmonary veins, two from each lung that drain into the left atrium of the heart.
The left and right ventricles of the heart receive blood from the atria and pump it into the outflow vessels; Start studying heart, arteries, veins anatomy. The pulmonary veins are constant with the capillary divisions of the pulmonary artery where they this creates variation in anatomy of many people that is observed in diagnosis.
The heart circulates blood through two pathways:
Learn all about the anatomy and physiology of the human heart with an interactive diagram and detailed descriptions of the organ and its parts. Pulmonary veins carry oxygenated blood via the lungs back to the left atrium of the heart. Of course, the heart is also a muscle, so it needs a fresh supply of oxygen and nutrients. Anatomical illustrations and structures, 3d model and photographs of dissection.