heart structure

What is the main function of the heart?

• To digest food

• To produce energy

• To control body temperature

• To pump blood

Answer explanation

The main function of the heart is to pump blood.

How many chambers are there in the human heart?

• 8

• 2

• 4

• 6

Answer explanation

There are 4 chambers in the human heart - 2 atria and 2 ventricles.

Name the upper chambers of the heart.

• Coronary arteries

• Pulmonary veins

• Atria

• Ventricles

Answer explanation

The upper chambers of the heart are called atria, which receive blood from the veins and pump it into the ventricles.

Which chamber of the heart receives oxygenated blood from the lungs?

• lower ventricle

• left atrium

• upper atrium

• right atrium

Answer explanation

The left atrium receives oxygenated blood from the lungs, making it the correct choice.

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

• Pulmonary artery

• Pulmonary vein

• Aorta

• Vena cava

Answer explanation

The aorta carries oxygenated blood from the heart to the body, making it the correct choice for this question.

Which blood vessel carries deoxygenated blood from the body to the heart?

• Pulmonary artery

• Pulmonary vein

• Aorta

• Vena cava

Answer explanation

The vena cava carries deoxygenated blood from the body to the heart, making it the correct choice in this case.

Explain the role of the atria in the heart's pumping action.

• To pump blood to the body

• To receive blood from the body

• To regulate blood flow to the lungs

• To store excess blood in the heart

Answer explanation

To receive blood from the body

Which side is the right side of the heart? A or B?

(a)  

What is the scientific name for the heart muscle tissue?

• Cardiac muscle

• Striated muscle

• Smooth muscle

• Epithelial muscle tissue

What is the name of the large artery the arrow is pointing to?

• vena cava

• pulmonary artery

• pulmonary vein

• aorta