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  1. Blood | American Society of Hematology

    6 days ago · In this Review Series episode, Blood Associate Editor, Dr. Elisabeth Battinelli discusses the Platelet Heterogeneity with authors Drs. Craig Morrell, Larry Frelinger, and Leo Nicolai. Find the full …

  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 waste products away …

  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 | 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 functions. These …

  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 about 55% …

  6. Facts About Blood - Johns Hopkins Medicine

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

  7. 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.

  8. Overview of Blood - Visible Body

    Blood is made up of 55% plasma and 45% formed elements—red blood cells, white blood cells, and platelets. Blood is fluid connective tissue that circulates throughout the body.

  9. Bringing Blood to Life • The Blood Project

    Oct 4, 2021 · Case-based studies and essays on blood that cover historical perspectives, the identity crisis of the hematologist, the definition of blood disease as a construct, fascinating blood tales in …

  10. Overview of Blood

    The body contains about 5 to 6 quarts (about 5 liters) of blood. Blood performs various essential functions as it circulates through the body: Once blood is pumped out of the heart, it takes 20 to 30 …