They prevent backflow of blood back into the Left and Right Ventricles
Arteries carry oxygenated blood away from the heart to the body tissues, providing nutrients and oxygen. Veins return deoxygenated blood back to the heart, carrying waste products like carbon dioxide. Capillaries facilitate the exchange of oxygen, nutrients, and waste products between the blood and tissues.
The cardiac cycle consists of two main events: diastole, when the heart muscle relaxes and fills with blood, and systole, when the heart muscle contracts to pump blood out to the body. These events are further subdivided into atrial systole, ventricular systole, isovolumetric contraction, ventricular ejection, isovolumetric relaxation, and atrial diastole.
Valves in the heart prevent backflow of blood and ensure that blood flows in the correct direction through the different chambers of the heart. They help maintain the efficiency of the heart's pumping action by ensuring that blood moves forward and does not leak back into the chambers it came from.
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the semi lunar valves stop the blood flowing the wrong way !
There are 3
semi-lunar valves
Semilunar valves are open when the blood is being pumped. The AV valves are closed when the semilunar valves are open.
The semi-lunar valves
Open so the ventricle can receive more blood to pump.
lub dub lub is when the av valves close and dub is when the semi lunar valves close
semi lunar valves
they are found at the entrance of the main aorta and the pulmonary artery
bicuspid valve tricuspid valve semi lunar valve
you should have listened to your teacher when she was explaining kiddo.
your semi lunar valves stop slop from entering your left aorta and your lunar valves stop crud from entering your right ventricle. this is the purpose of your valves. but this is different in dogs as your septum helps fight against testicular torsion.