Cardiovascular System Quiz

Where is the heart located in the body?

• In the abdomen, slightly to the right of the midline

• In the mediastinum, slightly to the left of the midline

• In the neck, between the collarbones

• In the pelvis, near the spine

What is the function of the pulmonary circuit?

• Transports oxygenated blood to the body

• Transports deoxygenated blood to the lungs

• Carries nutrients to the liver

• Removes waste from the kidneys

Which layer of the heart wall is composed of cardiac muscle?

• Epicardium

• Myocardium

• Endocardium

• Pericardium

What is the role of the aorta in the cardiovascular system?

• Transports deoxygenated blood to the lungs

• Returns oxygenated blood from the lungs

• Transports oxygenated blood to the body

• Brings deoxygenated blood to the right atrium

Which chambers of the heart receive blood?

• Right Ventricle and Left Ventricle

• Right Atrium and Left Atrium

• Right Atrium and Right Ventricle

• Left Atrium and Left Ventricle

Which valve is located on the right side of the heart and is part of the atrioventricular (AV) valves?

• Bicuspid (Mitral) Valve

• Aortic Valve

• Tricuspid Valve

• Pulmonary Valve

What is the function of the sinoatrial (SA) node in the heart?

• It pumps blood to the lungs.

• It generates action potentials to control the heartbeat.

• It filters blood.

• It stores oxygen.

In an electrocardiogram (ECG), what does the QRS complex represent?

• Atrial depolarization

• Ventricular repolarization

• Ventricular depolarization

• Atrial repolarization

What is the term for the contraction phase of the cardiac cycle?

• Diastole

• Systole

• Lub

• Dub

What is the formula for calculating cardiac output (CO)?

• CO = Heart Rate (HR) / Stroke Volume (SV)

• CO = Stroke Volume (SV) + Heart Rate (HR)

• CO = Stroke Volume (SV) x Heart Rate (HR)

• CO = Heart Rate (HR) - Stroke Volume (SV)