Heart & conduction system

Identify the chambers of the heart labeled in the diagram.

• A) Right Atrium, Left Atrium, Right Ventricle, Left Ventricle

• B) Right Atrium, Right Ventricle, Aorta, Pulmonary Artery

• C) Left Atrium, Left Ventricle, Aortic Valve, Mitral Valve.

Fill in the blank: The valve located between the left atrium and left ventricle is called the _________.

• Mitral (Bicuspid) Valve.

• Tricuspid Valve

• Aortic Valve

• Pulmonary Valve

Which blood vessel carries oxygenated blood from the lungs to the heart?

• Pulmonary Artery

• Vena Cava

• Pulmonary Vein

Which of the following correctly describes the functions of the layers of the heart: 1. Pericardium 2. Myocardium 3. Endocardium?

• Pericardium protects the heart, Myocardium contracts to pump blood, Endocardium lines the heart chambers

• Pericardium lines the heart chambers, Myocardium protects the heart, Endocardium contracts to pump blood

• Pericardium contracts to pump blood, Myocardium lines the heart chambers, Endocardium protects the heart

• Pericardium lines the heart chambers, Myocardium contracts to pump blood, Endocardium protects the heart

What is the unique ability of cardiac muscle that allows it to contract without any external stimulation?

Which of the following is not a part of the cardiac conduction system?

• Sinoatrial (SA) node

• Atrioventricular (AV) node

• AV bundle (bundle of His)

• Mitral valve

Fill in the blank: The cardiac muscle is described as _______ because it can generate its own electrical signal.

• automatic

• involuntary

• skeletal

• smooth

List the components of the cardiac conduction system as shown in the diagram.

• Sinoatrial node, Atrioventricular node, Bundle of His, Purkinje fibers

• Sinoatrial node, Atrioventricular node, Bundle of His, Purkinje fibers, Left and Right Bundle Branches

• Sinoatrial node, Atrioventricular node, Purkinje fibers

• Sinoatrial node, Atrioventricular node, Bundle of His