Arteries And Veins Of The Body
How blood circulates through arteries and veins of the body?
All of us have experienced fast beating of the heart when we are engaged in strenuous exercises or are experience intense fear. The beating of the heart is our heart pumping blood with force. Our body has a system of blood vessels which is also referred to as a circulatory system. Blood is carried to every part and cell of the body through these elastic tubes. Though our heart continues to beat all the time, we become more aware of its job when we are engaged in exercising, jogging, running and similar activities.
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Significance of Bood
If you are wondering why blood is essential for us, read further.
- The function of blood is to carry vital nutrients and oxygen to the tissues of the body.
- It also collects waste products and carbon dioxide from these tissues and carries it to the heart or oxygenation.
- Blood helps in sustaining life and promoting good health of cells and tissues of the body.
- Blood is transported to and fro from the heart through arteries and veins of the body.
Our Circulatory system has three types of blood vessels. These are arteries, veins, and capillaries.
Arteries are depicted as red, and it carries nutrients and oxygen away from the heart to the cells and tissues of the body. These are deep-seated in our body; hence invisible on the skin surface. The arteries begin and branch out with the aorta. It is the largest artery in the body. It branches several times and become smaller and thinner as it reaches the body extremities carrying blood further away from the heart.
Veins, on the other hand, are denoted blue, and it’s meant to carry oxygen-poor and carbon-dioxide-rich blood back to the heart. These are thin and located close to the skin surface; hence visible.
Capillaries are smaller and thinner than the arteries and veins of the body and are connecting blood vessels. It connects veins and arteries. Since its walls are quite thin, it allows nutrients, oxygen, waste products, and carbon dioxide to pass through its walls.
It is significant to note that the entire system of blood vessels is approximately 60, 000 miles long.