Ukulele Festival Hawaii. This annual Waikiki festival honors Hawaii's beloved musical instrument. Photo: Tina Mahina. Photo: Tina Mahina. The ukulele is Hawaiiâs best-loved musical instrument, so it makes sense that Ukulele Festival Hawaii is the worldâs largest, attracting enthusiasts from as far away as Italy and Thailand.
atrioventricular (AV) valve, a valve in the heart through which blood flows from the atria to the ventricles. The valve between the left atrium and left ventricle is the mitral (bicuspid) valve; the right AV valve is the tricuspid valve. 1  Facebook. 2  Twitter.
The right atrioventricular valve (or right AV valve), also called the tricuspid valve, (for its three leaflet lobes) controls the flow of blood between the right atrium and right ventricle. (The opening itself is the right atrioventricular canal.) It prevents dexoygenated blood from regurgitating back into the right atrium. The vale is called tricuspid because of its three leaflets; it must be noted however, that the tricuspid valve can contain between two and four leaflets.