Understanding the Human Heart

What is the name of the thin layer covering the heart's exterior?

• Endocardium

• Pericardium

• Myocardium

• Epicardium

What is the primary function of the heart?

• To produce red blood cells

• To filter toxins from the blood

• To pump blood throughout the body

• To digest nutrients

Which valve is located between the right atrium and right ventricle?

• Aortic valve

• Pulmonary valve

• Mitral valve

• Tricuspid valve

What happens to blood when it reaches the lungs?

• It loses carbon dioxide

• It gains oxygen

• It becomes plasma

• It turns into white blood cells

Which chamber of the heart receives oxygen-rich blood from the lungs?

• Right atrium

• Left ventricle

• Right ventricle

• Left atrium

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

• To distribute oxygen-rich blood throughout the body

• To bring oxygen-poor blood back to the heart

• To pump blood out of the heart

• To carry blood to the lungs

How many times does the heart beat in an average year?

• 40 million

• 100,000

• 3 billion

• 60,000

Tags

CCSS.8.EE.A.3

What condition is known as a heart attack?

• Arrhythmia

• Heart disease

• Myocardial infarction

• Hypertension

Which activity can increase a person's heartbeat?

• Meditation

• Exercise

• Reading

• Sleeping

How long is the network of blood vessels in the human body?

• Around 10,000 miles

• Over 60,000 miles

• Nearly 100,000 miles

• Approximately 30,000 miles