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Health TopicsHeart and Circulatory System
question

How many arteries are there in the body?

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answer
You will probably recognize the main arteries in the human body:
  • the aorta the main artery coming out of the heart
  • coronary arteries in the heart
  • the carotid artery in the neck.
However, there are more than 20 major arteries throughout the body, which then branch out into many, many smaller arterioles and capillaries. This extensive network carries blood to all parts of the body.

Each artery is made up of three layers:
  • a smooth layer on the inside
  • a thick layer of muscle in the middle
  • a rough layer on the outside.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.