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 …
Blood: What It Is & Function - Cleveland Clinic
Jul 21, 2025 · Blood is a specialized fluid that constantly flows throughout your body. It’s made of plasma, red blood cells, white blood cells and platelets.
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 functions. These …
Facts About Blood - Johns Hopkins Medicine
Detailed information on blood, including components of blood, functions of blood cells and common blood tests.
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% …
Blood | American Society of Hematology
In this week's episode, Blood editor Dr. James Griffin interviews authors Drs. Vincent Muczynski and Mark Geyer on their latest research published in Blood. Dr. Muczynski's research asks if there could …
Overview of Blood and Blood Components
The main job of red blood cells, or erythrocytes, is to carry oxygen from the lungs to the body tissues and carbon dioxide as a waste product, away from the tissues and back to the lungs.