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.
The heart valves can be broken down into two types: atrioventricular and semilunar valves. 1  Atrioventricular valves. The atrioventricular (AV) valves are located in the middle of the heart between the atria and ventricles and only allow blood to flow from the atria into the ventricles. 2  Semilunar valves.