Anatomy

A reduction in the hemoglobin of red blood cells with consequent deficiency of oxygen in the blood, leading to weakness and pallor

The forces involved in circulating blood through the cardiovascular system. The heart adapts its hemodynamic performance to the needs of the body, increasing its output of blood when muscles are working and decreasing output when the body is at rest

The structure that controls blood flow from the heart’s upper right chamber (the right atrium) into the lower right chamber (the right ventricle).