Vann HBS Heart Activity

Front

What is the Right Atrium?

Back

The Right Atrium is one of the four chambers of the heart that receives deoxygenated blood from the body through the superior and inferior vena cava.

Front

Define diastole and systole.

Back

Diastole is the relaxation phase of the heart, while systole is the contraction phase of the heart.

Front

What carries oxygenated blood from the lungs to the left atrium?

Back

The pulmonary vein carries oxygenated blood from the lungs to the left atrium of the heart.

Front

What is the order of phases an action potential travels in the conduction system?

Back

The order is: SA node → AV node → AV bundle branches → Purkinje fibers.

Front

What is the aorta?

Back

The aorta is the main artery of the body that carries oxygenated blood from the heart to the rest of the body.

Front

What is the function of the Superior Vena Cava?

Back

The Superior Vena Cava is a large vein that carries deoxygenated blood from the upper body to the right atrium of the heart.

Front

What is the role of the Right Ventricle?

Back

The Right Ventricle pumps deoxygenated blood to the lungs for oxygenation through the pulmonary artery.

Front

What is the significance of the AV node in the heart?

Back

The AV node acts as a gatekeeper, slowing down the electrical signal before it passes to the ventricles, allowing for proper timing of heart contractions.

Front

What is the function of the pulmonary artery?

Back

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

Front

What is the role of the Purkinje fibers?

Back

Purkinje fibers distribute the electrical impulse throughout the ventricles, causing them to contract and pump blood.