The most important thing about the Pixel, for Google and Android and probably you as well, is that this is the first phone to have the Google Assistant built in. Google Now is dead, long live the Google Assistant. Itâs a core piece of the phone, available everywhere just the way Siri is on the iPhone.
1 Understanding the role of each of the four heart valves can help you learn why you might need to be on the look out for certain signs and symptoms. 2  Additional valve terms and related conditions can help you broaden your understanding, too.
There are four valves in your heart including the mitral, tricuspid, aortic and pulmonic valves. The aortic valve is located between the left ventricle (lower heart pumping chamber) and the aorta, which is the largest artery in the body.Valves maintain one-way blood flow through the heart. 1  Click here to learn more about the heart valves.ortic valve disease occurs when the aortic valve does not work correctly. This can be caused by: 1  Aortic valve stenosis: These stiff, fused, thickened, inflexible valve leaflets lead to the narrowing of the aortic valve, that limits the blood flow.