About 6,060,000 results
Open links in new tab
  1. Blood | American Society of Hematology

    6 days ago · In this special episode, Blood editor Dr. Laura Michaelis interviews Dr. Arielle Langer and Blood Associate editor Dr. Marc Blondon for this special Maternal Health episode.

  2. 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 …

  3. 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.

  4. 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 …

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

    Nov 7, 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 …

  6. Blood Types Explained - A, B, AB and O - Red Cross Blood

    Nov 28, 2025 · Blood types are determined by the presence or absence of certain antigens – substances that can trigger an immune response if they are foreign to the body. Since some …

  7. Facts About Blood - Johns Hopkins Medicine

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

  8. 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.

  9. BLOOD Definition & Meaning - Merriam-Webster

    The meaning of BLOOD is the fluid that circulates in the heart, arteries, capillaries, and veins of a vertebrate animal carrying nourishment and oxygen to and bringing away waste products from …

  10. Blood - MedlinePlus

    May 11, 2023 · Blood has many functions in your body. Blood tests help doctors check for certain diseases and conditions. Learn about blood types and blood tests.