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 …

Dec 11, 2025 · In this Review Series episode, Blood Associate Editor, Dr. Elisabeth Battinelli discusses the Platelet Heterogeneity with authors Drs. Craig Morrell, Larry Frelinger, and Leo …

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

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 …

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 …

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

Register to be a blood donor, give blood and save lives. Find out more about blood donation.

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.

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.

4 days ago · A red blood cell count measures the number of red blood cells that carry oxygen in your blood. Low red blood cell counts can indicate anemia, which often causes fatigue and …