Front

What is the function of the pulmonary trunk?

Back

The pulmonary trunk carries deoxygenated blood from the right ventricle to the lungs for oxygenation.

Front

Describe the flow of blood starting from the right atrium.

Back

The correct flow is: Right atrium → Right ventricle → Pulmonary artery.

Front

What role does the superior vena cava play in the circulatory system?

Back

The superior vena cava delivers deoxygenated blood from the upper body to the right atrium.

Front

Where is the sinoatrial (SA) node located?

Back

The sinoatrial node is located in the right atrium and is known as the heart's natural pacemaker.

Front

What is the sequence of electrical conduction in the heart?

Back

The sequence is: SA node → AV node → Bundle of His → Purkinje fibers.

Front

What type of blood does the aorta carry?

Back

The aorta carries oxygenated blood from the left ventricle to the rest of the body.

Front

What is the role of the right ventricle?

Back

The right ventricle pumps deoxygenated blood into the pulmonary trunk.

Front

Define the term 'deoxygenated blood'.

Back

Deoxygenated blood is blood that has a low oxygen content and high carbon dioxide content, returning from the body to the heart.

Front

What is the function of the left atrium?

Back

The left atrium receives oxygenated blood from the lungs via the pulmonary veins.

Front

Explain the role of the AV node in the heart's conduction system.

Back

The AV node acts as a gatekeeper, slowing down the electrical signal before it passes to the ventricles.