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  1. Blood - Wikipedia

    Blood is a body fluid in the circulatory system of humans and other vertebrates that delivers necessary substances such as nutrients and oxygen to the cells, and transports metabolic …

  2. Blood | Definition, Composition, Functions, & Facts | Britannica

    Dec 15, 2025 · Blood is a fluid that transports oxygen and nutrients to cells and carries away carbon dioxide and other waste products. It contains specialized cells that serve particular …

  3. Facts About Blood - Johns Hopkins Medicine

    Detailed information on blood, including components of blood, functions of blood cells and common blood tests.

  4. Blood: What It Is & Function - Cleveland Clinic

    Blood is a specialized fluid that constantly flows throughout your body. It’s made of plasma, red blood cells, white blood cells and platelets.

  5. Blood Basics - Hematology.org

    It has four main components: plasma, red blood cells, white blood cells, and platelets. The blood that runs through the veins, arteries, and capillaries is known as whole blood—a mixture of …

  6. Blood - MedlinePlus

    May 11, 2023 · The solid part of your blood contains red blood cells, white blood cells, and platelets. Red blood cells (RBC) deliver oxygen from your lungs to your tissues and organs.

  7. Blood Donation Saves Lives | OneBlood

    Blood donation near you at a donor center or on the Big Red Bus. Give blood or platelets today to help save lives tomorrow.

  8. Donate Blood | Find a Local Blood Drive | American Red Cross

    Giving blood is a simple thing to do, but it can make a big difference in the lives of others. Make a blood donation appointment with the American Red Cross today.

  9. Walk-In Blood Clinic in Downtown Fredericton - King Street …

    As the name suggests, the King Street Blood Clinic can perform all blood tests that your primary healthcare provider recommends as well as collect urine/stool samples for hospital drop off.

  10. Blood: Components, functions, groups, and disorders

    Jan 16, 2024 · Blood circulates throughout the body, transporting substances essential to life. Here, learn about the components of blood and how it supports human health.