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.
The mitral valve and the aortic valve are in the left heart; the tricuspid valve and the pulmonary valve are in the right heart. There are also the coronary sinus and the inferior vena cava valves. heart valve normally allows blood to flow in only one direction through the heart. The four valves commonly represented in a mammalian heart determine the pathway of blood flow through the heart.