3.4 🧠Heart shape

What is the main function of the cardiovascular system?

• To produce hormones

• To store energy

• To supply oxygen and nutrients to tissues

• To digest food

What is the shape of the heart?

• Cone-shaped

• Round

• Triangular

• Square

What is the outermost layer of the heart wall called?

• Endocardium

• Myocardium

• Epicardium

• Pericardium

What separates the atria from the ventricles?

• A septum

• A wall

• A muscle

• A valve

What is the role of the coronary arteries?

• To remove waste from the body

• To supply blood to the heart muscle

• To carry blood to the lungs

• To store oxygen