Heart Structure and Function

What is the function of the heart?

• To pump blood throughout the body

• To filter waste from the blood

• To produce oxygen

• To regulate body temperature

How many chambers does the heart have?

• Two

• Three

• Four

• Five

Which chamber of the heart receives deoxygenated blood from the body?

• Right atrium

• Left atrium

• Right ventricle

• Left ventricle

What is the largest blood vessel in the body?

• Aorta

• Pulmonary artery

• Superior vena cava

• Inferior vena cava

Which valve separates the right atrium from the right ventricle?

• Tricuspid valve

• Pulmonary valve

• Mitral valve

• Aortic valve

What is the normal rhythm of the heart called?

• Sinus rhythm

• Ventricular tachycardia

• Atrial flutter

• Ventricular fibrillation

What is the main cause of arrhythmias?

• Development of reentrant circuits of electrical activity

• Increased blood pressure

• Lack of oxygen in the blood

• Genetic factors

What is the life-threatening arrhythmia characterized by rapid, irregular activation of the ventricles?

• Ventricular tachycardia

• Atrial flutter

• Ventricular fibrillation

• Atrial fibrillation

What is the purpose of the atria in the heart?

• To collect blood entering the heart and send it to the ventricles

• To pump blood to the lungs

• To pump blood to the rest of the body

• To regulate heart rate

What is the purpose of the ventricles in the heart?

• To collect blood entering the heart and send it to the ventricles

• To pump blood to the lungs

• To pump blood to the rest of the body

• To regulate heart rate