The Heart

The heart is part of the ___________ system.

Answer explanation

The circulatory system pumps blood from the heart to the lungs to get oxygen. The heart then sends oxygenated blood through arteries to the rest of the body. The veins carry oxygen-poor blood back to the heart to start the circulation process over.

What do arteries do?

• Arteries carry deoxygenated blood away from the heart.
• Arteries are responsible for filtering blood in the body.
• Arteries transport nutrients from the lungs to the heart.
• Arteries carry oxygen-rich blood away from the heart.

Answer explanation

Arteries carry oxygen-rich blood away from the heart.

What is the function of the heart?

• The heart is primarily responsible for digestion.

• The heart filters toxins from the blood.

• The heart pumps oxygenated blood to the body and deoxygenated blood to the lungs.

• The heart produces red blood cells.

Answer explanation

The heart pumps oxygenated blood to the body and deoxygenated blood to the lungs.

How does deoxygenated blood return to the heart?

• Through the arteries.

• Through the capillaries.

• Through the veins.

• It does not return to the heart.

Circle the Aorta in blue.

Answer explanation

What role do the capillaries play in the circulatory system?

• They transport oxygen-rich blood away from the heart.

• They return deoxygenated blood to the heart.

• They facilitate the exchange of oxygen, carbon dioxide, and other nutrients and waste products between blood and tissues.

• They pump blood throughout the body.

Answer explanation

Capillaries facilitate the exchange of oxygen, carbon dioxide, and other nutrients and waste products between blood and tissues, making them essential in the circulatory system.

What is the primary function of white blood cells?

• To carry oxygen throughout the body

• To fight infections and other diseases

• To clot blood

• To transport carbon dioxide to the lungs

Which component of the blood carries oxygen to the body's tissues?

• White blood cells

• Platelets

• Plasma

• Red blood cells

How does the heart receive oxygenated blood?

• Through the pulmonary artery

• Through the pulmonary vein

• Through the aorta

• Through the coronary arteries

Answer explanation

The heart receives oxygenated blood through the coronary arteries, which supply blood to the heart muscle itself.

1?

• pulmonary artery

• Aorta

• left atrium

Answer explanation