Herzklappen

The video tutorial provides an in-depth look at the anatomy and function of the heart, focusing on its valves and coronary arteries. It explains the structure and role of the mitral, tricuspid, aortic, and pulmonary valves, as well as the coronary arteries that supply blood to the heart. The tutorial also covers the heart's function during systole and diastole, and the importance of preventing blood backflow. Additionally, it discusses the cardiac skeleton and its role in separating the atrial and ventricular muscles.

What is the primary function of the heart valves?

• To pump blood throughout the body

• To regulate heart rate

• To prevent the backflow of blood

• To oxygenate the blood

Which heart valve is located between the left atrium and left ventricle?

• Mitral valve

• Aortic valve

• Tricuspid valve

• Pulmonary valve

What is the main role of the annulus fibrosus in the heart?

• To oxygenate the blood

• To pump blood into the aorta

• To separate atrial and ventricular muscles

• To conduct electrical impulses efficiently

How many sails does the tricuspid valve have?

• One

• Two

• Four

• Three

Where is the aortic valve located?

• Between the right atrium and right ventricle

• Between the left ventricle and aorta

• Between the left atrium and left ventricle

• Between the right ventricle and pulmonary trunk

What is the function of the semilunar valves during diastole?

• To close and prevent backflow

• To regulate heart rate

• To pump blood into the ventricles

• To open and allow blood flow

Which artery supplies the anterior wall of the right ventricle?

• Left coronary artery

• Right coronary artery

• Ramus circumflexus

• Ramus interventricularis anterior

What is the main function of the right coronary artery?

• To supply the left ventricle

• To supply the right ventricle

• To supply the pulmonary trunk

• To supply the left atrium

What is the role of the sinus coronarius?

• To supply oxygenated blood to the heart

• To return venous blood to the right atrium

• To separate the atria and ventricles

• To conduct electrical impulses

What can cause cardiac arrhythmia related to the sinus coronarius?

• Decreased heart rate

• Increased blood flow through the coronary arteries

• Disturbance in physiological excitation conduction

• Efficient conduction of electrical impulses