The posterior interventricular sulcus or posterior longitudinal sulcus is one of the two grooves separating the ventricles of the

heart The heart is a muscular Organ (biology), organ found in humans and other animals. This organ pumps blood through the blood vessels. The heart and blood vessels together make the circulatory system. The pumped blood carries oxygen and nutrie ...

(the other being the

anterior interventricular sulcus The anterior interventricular sulcus (or anterior longitudinal sulcus) is one of two grooves separating the ventricles of the heart The heart is a muscular Organ (biology), organ found in humans and other animals. This organ pumps bloo ...

). They can be known as subsinosal interventricular groove or paraconal interventricular groove respectively. It is located on the

diaphragmatic The thoracic diaphragm, or simply the diaphragm (; ), is a sheet of internal skeletal muscle in humans and other mammals that extends across the bottom of the thoracic cavity. The diaphragm is the most important muscle of respiration, and separ ...

surface of the heart near the right margin. It extends between the

coronary sulcus The coronary sulcus (also called coronary groove, auriculoventricular groove, atrioventricular groove, AV groove) is a Sulcus (morphology), groove on the surface of the heart at the base of right auricle that separates the Atrium (heart), atria fr ...

and the (notch of) apex of the heart. It contains the

posterior interventricular artery In the coronary circulation, the posterior descending artery (PDA), also called the posterior interventricular artery (PIV, PIA, or PIVA), is an artery running in the posterior interventricular sulcus to the apex of the heart where it meets with ...

and

middle cardiac vein The middle cardiac vein commences at the apex of the heart. It passes posteriorly along the inferior interventricular sulcus to end at the coronary sinus near the sinus' termination. Structure Origin The middle cardiac vein commences at the ...

References

External links

* Cardiac anatomy {{circulatory-stub