STRUCTURE OF THE HEART (MUSCLES & VALVES)

Name the valve that is responsible for making sure that blood doesn't go back to the atrium when the ventricles contract?

What is the name of the valves found between the ventricles and the blood vessels?

Why is the wall of the left ventricle thicker than the wall of the right ventricle?

Why is the wall of the atrium thinner than the wall of ventricles?

There's a term called 'Oxygenated Blood' and "Deoxygenated Blood'. What do you think the meaning of the terms are?