About 4,220,000 results
Open links in new tab
  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: Function, What It Is & Why We Need It - Cleveland Clinic

    What is blood? Blood is an essential life force, constantly flowing and keeping your body working. Blood is mostly fluid but contains cells and proteins that literally make it thicker than water.

  3. Blood | Definition, Composition, & Functions | Britannica

    May 29, 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 …

  4. Facts About Blood - Johns Hopkins Medicine

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

  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: 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.

  7. Overview of Blood - Blood Disorders - Merck Manual Consumer Version

    Blood performs various essential functions as it circulates through the body: Delivers oxygen and essential nutrients (such as fats, sugars, minerals, and vitamins) to the body's tissues

  8. Blood, Components and Blood Cell Production - ThoughtCo

    Feb 4, 2020 · Blood is made up of plasma, red blood cells, white blood cells, and platelets. Bone marrow is where red and white blood cells, and platelets are made. Red blood cells carry …

  9. 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.

  10. 18.1 Functions of Blood – Anatomy & Physiology

    Identify the primary functions of blood, its fluid and cellular components, and its characteristics. Recall that blood is a connective tissue. Like all connective tissues, it is made up of cellular …