Final Exam Review--Anatomy and Physiology

Front

What is expiration in the context of respiration?

Back

Expiration refers to the process of air moving out of the lungs.

Front

What is the myocardium?

Back

The myocardium is the wall of the heart made up mostly of cardiac muscle.

Front

What is the correct sequence of the heart’s electrical impulse?

Back

SA node → Atria → AV node → AV bundle - Purkinje fibers → Ventricles.

Front

Which chamber of the heart is responsible for pumping oxygenated blood to the body?

Back

The left ventricle.

Front

How does blood re-enter the heart after delivering oxygen to the body?

Back

Blood re-enters the heart through the superior and inferior vena cava.

Front

What is the function of the pericardium?

Back

The pericardium is a protective sac surrounding the heart.

Front

What role do the pulmonary veins play in the circulatory system?

Back

Pulmonary veins carry oxygenated blood from the lungs to the heart.

Front

What is the function of the aorta?

Back

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

Front

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

Back

The AV node acts as a relay point for electrical impulses between the atria and ventricles.

Front

What is the significance of the SA node?

Back

The SA node is known as the heart's natural pacemaker, initiating the heartbeat.