Understanding the Circulatory System

What is the circulatory system?

• The circulatory system is the part of the body that processes oxygen in the lungs.

• The circulatory system is responsible for digestion and nutrient absorption.

• The circulatory system is a network of nerves that controls movement.

• The circulatory system is the system that circulates blood and lymph through the body, consisting of the heart, blood vessels, and blood.

What are the main components of the circulatory system?

• Kidneys, liver, pancreas

• Brain, spinal cord, nerves

• Heart, blood vessels, blood

• Lungs, trachea, alveoli

How does blood circulate through the body?

• Blood moves through the body by gravity alone.

• Oxygen is delivered only during sleep.

• Blood circulates only in the brain.

• Blood circulates through the body via the heart and blood vessels, delivering oxygen and nutrients to tissues and returning deoxygenated blood to the lungs.

What is the function of the heart in the circulatory system?

• To produce hormones for digestion

• The function of the heart in the circulatory system is to pump blood throughout the body.

• To regulate body temperature

• To filter toxins from the blood

What role do arteries play in the circulatory system?

• Arteries are responsible for filtering blood.

• Arteries transport oxygenated blood from the heart to the body.

• Arteries help in the absorption of nutrients.

• Arteries carry deoxygenated blood to the heart.

What is the difference between veins and arteries?

• Veins are thicker than arteries and carry blood at higher pressure.

• Veins carry oxygenated blood away from the heart; arteries carry deoxygenated blood to the heart.

• Veins and arteries both carry oxygenated blood to the heart.

• Veins carry deoxygenated blood to the heart; arteries carry oxygenated blood away from the heart.

How does oxygenated blood differ from deoxygenated blood?

• Oxygenated blood is found in veins, while deoxygenated blood is found in arteries.

• Oxygenated blood contains high levels of oxygen, while deoxygenated blood contains low levels of oxygen.

• Deoxygenated blood is bright red, while oxygenated blood is dark red.

• Oxygenated blood is thicker than deoxygenated blood.

What is the significance of capillaries in the circulatory system?

• Capillaries store excess blood for later use.

• Capillaries are responsible for pumping blood throughout the body.

• Capillaries transport oxygen from the lungs to the heart.

• Capillaries enable the exchange of substances between blood and tissues.

How does the circulatory system interact with the respiratory system?

• The circulatory system delivers oxygen from the lungs to the body and removes carbon dioxide back to the lungs.

• The circulatory system only transports nutrients to the lungs.

• The circulatory system filters air before it reaches the lungs.

• The respiratory system pumps blood throughout the body.

What are some common diseases related to the circulatory system?

• Asthma

• Coronary artery disease, hypertension, heart failure, stroke

• Kidney stones

• Diabetes mellitus