Sinus headaches typically have the following symptoms: 1  Pressure-like pain in one specific area of your face or head (for example, behind your eyes). 2  Face is tender to the touch. 3  Pain is worse with sudden movements of the head and bending forward.
The Right atrioventricular valve (also known as the Tricuspid Valve) has 3 FLAPS.
Atrioventricular (AV) and Semilunar Valves. The atrioventricular valves (AV valves), which separate the atria from the ventricles, allow blood to flow from the atria to the ventricles, but prevent flow in the opposite direction.