The heart is the organ responsible for providing blood to the body. It acts as a pump, constantly circulating blood through a network of arteries and veins, delivering oxygen and nutrients to all cells.
The circulatory system, also known as the cardiovascular system, encompasses the heart and blood vessels. This system ensures that blood reaches every part of the body, delivering essential substances and removing waste products.
Here are some key points to remember about the heart's role in blood circulation:
- Pumping action: The heart's rhythmic contractions create pressure that propels blood through the arteries.
- Blood vessels: The arteries carry oxygenated blood away from the heart, while veins return deoxygenated blood to the heart.
- Essential functions: The circulatory system is crucial for delivering oxygen, nutrients, hormones, and removing waste products like carbon dioxide.
