Trikuspidalklappe

The video tutorial explains the anatomy and function of heart valves, focusing on the tricuspid valve. It describes the valve's structure, including its three sails and their role in blood flow. The tricuspid valve ensures unidirectional blood flow from the right atrium to the right ventricle, preventing backflow during systole. The video also covers the mechanics of heart valve operation, including the pressure changes that control valve opening and closing, and the heart sounds associated with these actions.

What is the primary function of the tricuspid valve in the heart?

• To allow blood to flow from the left atrium to the left ventricle

• To pump blood into the pulmonary trunk

• To separate the left and right sides of the heart

• To ensure blood flows from the right atrium to the right ventricle

How many sails does the tricuspid valve have, and what are they made of?

• Three sails made of cartilage

• Four sails made of muscle tissue

• Three sails made of thin, resistant membranes

• Two sails made of thick membranes

Which sail of the tricuspid valve is named for its orientation towards the heart septum?

• Anterior sail

• Posterior sail

• Septal sail

• Lateral sail

During which phase does the tricuspid valve open to allow blood flow into the right ventricle?

• Ventricular relaxation

• Atrial contraction

• Diastole

• Systole

What causes the first heart sound during the cardiac cycle?

• Relaxation of the atrium

• Tension of the ventricle and closure of the valve flaps

• Closure of the mitral valve

• Opening of the tricuspid valve