Exploring the Animal Circulatory System

What is the main function of the heart in animals?

• To digest food

• To store energy

• To filter waste

• The main function of the heart in animals is to pump blood.

Describe the structure of the human heart.

• The human heart has four chambers: right atrium, right ventricle, left atrium, and left ventricle, along with valves and a pericardium.

• The human heart consists of five chambers: two atria and three ventricles.

• The human heart is a single chamber organ with no valves.

• The human heart has three chambers: left atrium, left ventricle, and right ventricle.

What are the four chambers of the heart?

• Right atrium, right ventricle, left atrium, left ventricle

• Right atrium, left ventricle, left atrium, pulmonary artery

• Right ventricle, left atrium, aorta, left ventricle

• Right atrium, right ventricle, left atrium, pulmonary vein

How does blood flow through the heart?

• Blood moves from the lungs to the right ventricle before entering the left atrium.

• Blood flows through the heart from the right atrium to the right ventricle, to the lungs, back to the left atrium, into the left ventricle, and out to the body.

• Blood flows directly from the left ventricle to the right atrium.

• Blood circulates only within the left side of the heart.

What are the three main types of blood vessels?

• arteries, veins, capillaries

• capillaries, arteries, platelets

• arteries, veins, lymphatics

• veins, arteries, red blood cells

What is the function of arteries in the circulatory system?

• To transport deoxygenated blood from the body to the heart.

• To regulate body temperature through blood flow.

• The function of arteries is to transport oxygenated blood from the heart to the body.

• To filter blood and remove waste products.

How do veins differ from arteries?

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

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

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

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

What role do capillaries play in the circulatory system?

• Capillaries store excess blood for later use.

• Capillaries transport oxygen from the lungs to the heart.

• Capillaries are responsible for pumping blood throughout the body.

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

Why is the heart often referred to as a pump?

• The heart is a muscle that only expands and contracts.

• The heart is responsible for breathing in oxygen.

• The heart is a storage organ for nutrients.

• The heart is a pump that circulates blood throughout the body.

How does the circulatory system support overall body function?

• It stores nutrients for future use.

• It produces hormones that regulate metabolism.

• It circulates air to the lungs for breathing.

• The circulatory system supports overall body function by delivering essential substances to cells and removing waste.