The Circulatory system Lesson 4 explanations

Apprpoximately, How many times does your heart beat per day?

What is the circulatory system?

• The circulatory system is the system that circulates blood throughout the body.

• 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 part of the body that processes oxygen in the lungs.

Tick the three elements that blood transports around your bodu?

• water
• nutrients

• oxygen

• food

Your heart is located slightly to the _______ of your chest

What are the smallest blood vessels called that transport oxygenated blood?

• Venules
• Capillaries
• Veins
• Arteries

Why is the heart separated into the left and right side?

• To increase heart size and capacity.
• To pump blood more efficiently.
• To separate oxygenated blood from deoxygenated blood.
• To regulate blood pressure.

What is the process called when oxygen is transferred to deoxygenated blood in the lungs?

• diffusion

• Blood filtration
• Carbon dioxide removal
• Oxygenation

What is the name of the main artery leading away from the heart?

• coronary artery
• aorta
• pulmonary vein
• jugular vein

What is the name of the main vein leading to the heart?

• Pulmonary artery
• Aorta
• Superior vena cava
• Inferior vena cava

How is Carbon dioxide removed from the blood?

• Carbon dioxide is removed from the blood by the lungs via exhaling.

• Carbon dioxide is filtered out by the kidneys.
• Carbon dioxide is converted into glucose in the liver.
• Carbon dioxide is removed from the blood by absorption into the tissues.