One of the countryâs largest annual fireworks displays. Watch the Target Fireworks light up the Minneapolis sky! Come early for Aquatennial Pre-Fireworks Festivities beginning at 6 pm and enjoy food trucks, your favorite festival treats, live music and much more. A full schedule of the pre-fireworks festivities and music lineup will be announced soon.
Heart valve disease occurs if one or more of your heart valves don't work well. The heart has four valves: the tricuspid, pulmonary, mitral, and aortic valves. These valves have tissue flaps that open and close with each heartbeat. The flaps make sure blood flows in the right direction through your heart's four chambers and to the rest of your body.
Four valves are present in the heart to prevent blood from flowing in the wrong direction. Two of these are the atrioventricular (AV) valves between the atria and ventricles. The left AV valve is called the bicuspid (or mitral) valve, while the right AV valve is called the tricuspid valve. The other two are the semilunar valves: one between the right ventricle and the pulmonary artery and the other between the left ventricle and the aorta.