Research symptoms & diagnosis of Metastatic cancer: 1  Overview -- Metastatic cancer. 2  Diagnostic Tests for Metastatic cancer. 3  Home Diagnostic Testing. 4  Complications -- Metastatic cancer. 5  Doctors & Specialists. 6  Misdiagnosis and Alternative Diagnoses. 7  Hidden Causes of Metastatic cancer.
Systemic circulation carries oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body. From the tissue capillaries, the deoxygenated blood returns through a system of veins to the right atrium of the heart.ystemic circulation carries oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body. From the tissue capillaries, the deoxygenated blood returns through a system of veins to the right atrium of the heart.
There are two atria in the heart; one on the right and one on the left. The right atrium carries deoxygenated blood and the left atrium carries oxygenated blood. An ASD is when there is a hole between these two atria, resulting in a mixing of oxygenated and deoxygenated blood. See illustration below.