Left ventricle

The video tutorial discusses the anatomy and function of the left ventricle, one of the heart's lower chambers. It explains how the left ventricle receives oxygenated blood from the left atrium and pumps it through the aortic valve into the aorta. The left ventricle is thicker than the right ventricle to withstand higher pressure needed to circulate blood throughout the body. The video also covers the concept of cardiac output, which can increase significantly during exercise. The tutorial concludes by offering additional resources for learning anatomy through Ken Hub.

What is the primary function of the cardiac ventricles?

• To expel blood into the atria

• To collect blood from the peripheral tissues

• To collect blood from the atria and expel it to the peripheral tissues

• To regulate the heart rate

How does the left ventricle differ from the right ventricle in terms of structure?

• It is wider and forms the entire sternocostal surface

• It is shorter and transversely circular in a concave manner

• It is thinner and less muscular

• It is longer and transversely circular

Why is the left ventricular wall thicker than the right?

• To reduce the heart's overall weight

• To accommodate more blood volume

• To withstand higher contraction forces and blood pressure

• To increase the heart rate

What is the typical cardiac output of the heart at rest?

• 10 liters per minute

• 20 liters per minute

• 5 liters per minute

• 15 liters per minute

During exercise, how much can the cardiac output increase in athletes?

• Up to 45 liters per minute

• Up to 15 liters per minute

• Up to 25 liters per minute

• Up to 35 liters per minute