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 atrioventricular (AV) node is a part of the electrical conduction system of the heart that coordinates the top of the heart . It electrically connects the right atrium and right ventricle . The AV node lies at the lower back section of the interatrial septum near the opening of the coronary sinus , which conducts the normal electrical impulse from the atria to the ventricles.