And in the department of Quetzaltenango, 125 miles (200 kilometers) west of Guatemala City, a boulder loosened by rains crushed a house, killing two children and two adults, de Leon said. Calls to local radio stations told of many more landslides and possible deaths, but those reports could not be immediately confirmed.
From the right ventricle, blood is pumped through the semilunar pulmonary valve into the left and right main pulmonary arteries (one for each lung), which branch into smaller pulmonary arteries that spread throughout the lungs. Development. The pulmonary circulation loop is virtually bypassed in fetal circulation.
The blood then moves through the pulmonary vein, emptying into the left atrium. The oxygenated blood then passes through the bicuspid valve into the left ventricle. The left ventricle contracts and forces the blood out through the aortic semilunar valve and into the aorta.rom the lung blood comes through pulmonary veins to the section of the heart called the left atrium. The left atrium pumps to the left ventricle. The left ventricle pumps out through aorta to the rest of the body to deliver the oxygen. Once delivered, it returns to the right atrium to begin the cycle once more.