Cardiovascular System

What is the main function of the cardiovascular system?

• Digestion of food

• Transportation of essential substances

• Production of hormones

• Regulation of body temperature

Name the four main components of the cardiovascular system.

• brain

• muscles

• lungs

• heart, blood vessels, blood, lymphatic system

What is the average heart rate of a healthy adult at rest?

• 60-100 beats per minute

• 40-80 beats per minute

• 50-90 beats per minute

• 70-110 beats per minute

Explain the difference between arteries and veins.

• Arteries carry oxygenated blood away from the heart, while veins carry deoxygenated blood back to the heart. Arteries have thicker walls and higher pressure compared to veins.

• Veins carry oxygenated blood away from the heart, while arteries carry deoxygenated blood back to the heart.

• Arteries carry blood towards the heart, while veins carry blood away from the heart.

• Arteries have thinner walls and lower pressure compared to veins.

What is the purpose of capillaries in the cardiovascular system?

• Transport hormones exclusively

• Facilitate the exchange of nutrients, oxygen, and waste products between the blood and tissues.

• Store excess nutrients

• Regulate blood pressure