Dissection: Heart

The video tutorial explores the anatomy and function of the heart, using a calf's heart dissection to illustrate how blood circulates through the body. It covers the structure and roles of the heart's chambers, valves, and major blood vessels. The tutorial explains the differences between the right and left sides of the heart, focusing on their respective functions in oxygenating blood. It also discusses the mechanics of heart valves and the significance of their one-way flow. Finally, the video touches on heart surgery, including transplants, highlighting the complexity of connecting a new heart to existing blood vessels.

What is the function of the pericardium?

• To pump blood throughout the body

• To protect and lubricate the heart

• To regulate blood pressure

• To store oxygenated blood

Which part of the heart is larger and why?

• Left ventricle, because it pumps blood to the entire body

• Right ventricle, because it pumps blood to the lungs

• Left atrium, because it receives oxygenated blood

• Right atrium, because it receives deoxygenated blood

What is the role of the tricuspid valve?

• To prevent backflow of blood into the left atrium

• To prevent backflow of blood into the right atrium

• To regulate blood flow into the aorta

• To regulate blood flow into the pulmonary artery

How does the left ventricle differ from the right ventricle?

• It has a thinner wall and pumps blood to the lungs

• It is smaller and pumps blood to the atria

• It has a thicker wall and pumps blood to the entire body

• It receives deoxygenated blood from the body

What ensures that blood flows in one direction through the heart?

• The thickness of the ventricle walls

• The heart valves

• The pericardium

• The contraction of the atria

During a heart transplant, which part of the original heart is typically left behind?

• The aorta

• The pulmonary artery

• A portion of the original atrium

• The entire left ventricle

What is the primary purpose of connecting the new heart to the existing arteries and veins during a transplant?

• To increase the size of the heart

• To maintain blood circulation throughout the body

• To ensure the heart beats at a regular pace

• To decrease the heart's workload