The Rise of Kâ12 Blended Learning | 133 NSTITUTE NNOSIGHT represents a ranking of 1 st in Santa Clara County and 5 th in California when compared to similar schools with at least 70 percent low-income students.
The heart has four chambers, two upper atria, the receiving chambers, and two lower ventricles, the discharging chambers. The atria open into the ventricles via the atrioventricular valves, present in the atrioventricular septum. This distinction is visible also on the surface of the heart as the coronary sulcus.
The heart is the complex pump of the circulatory system, and pumps blood throughout the body for the purposes of tissue oxygenation and gas exchange. The heart has four chambers, through which blood flows. There are two sets of each type of chamber, one per side, that are distinct in function.