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  1. Circulation | Definition, Characteristics, & Function | Britannica

    Oct 11, 2025 · Circulation, the continuous movement of blood throughout the body, driven by the pumping action of the heart. The circulation of the blood links the sites of oxygen utilization …

  2. How Your Circulatory System Works - Cleveland Clinic

    Sep 4, 2024 · When blood gets oxygen from your lungs and brings it back to your heart, that’s your pulmonary circulation. Systemic circulation describes supplying oxygen-rich blood to your …

  3. Circulatory System or Cardiovascular System

    Dec 23, 2024 · The human circulatory system or cardiovascular system is a network responsible for transporting blood, oxygen, nutrients, hormones, and waste products throughout the body. …

  4. In brief: How does the blood circulatory system work?

    Nov 21, 2023 · The blood circulatory system (cardiovascular system) delivers nutrients and oxygen to all cells in the body. It consists of the heart and the blood vessels running through …

  5. What is: Circulation - Understanding Blood Flow

    Sep 28, 2024 · What is Circulation? Circulation refers to the continuous movement of blood throughout the body, facilitated by the heart and blood vessels. This vital process ensures that …

  6. CIRCULATION Definition & Meaning - Merriam-Webster

    The meaning of CIRCULATION is orderly movement through a circuit; especially : the movement of blood through the vessels of the body induced by the pumping action of the heart.

  7. What is the Circulatory System? Functions, Parts, and Flow Explained

    Apr 13, 2025 · To act as the conduits through which blood travels—transporting oxygen, nutrients, hormones, waste products, and immune cells. There are three main types of blood vessels: …

  8. Circulation | definition of circulation by Medical dictionary

    Movements in a circle, or through a circular course, or through a course that leads back to the same point; usually referring to blood circulation through the network of arteries and veins …

  9. Circulatory system: Structure, function, parts, diseases | Kenhub

    Sep 12, 2023 · The circulatory system, also called cardiovascular system, is a vital organ system that delivers essential substances to all cells for basic functions to occur.

  10. Circulatory System: Function, Organs, Diseases - Healthline

    Feb 17, 2020 · Your circulatory system works all day, every day, to pump oxygen throughout your body. There are cardiovascular conditions that can impact this system. Your circulatory …