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 of the body, and transports metabolic waste …

In this week's episode of the Blood podcast, editor Dr. James Griffin interviews Drs. Christian Gorzelanny and Rebecca Leaf on their latest articles published in this week's issue of Blood.

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.

Mar 2, 2026 · 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 …

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% …

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

Enter your zip code to find the nearest donation center or blood drive near you. Learn about every step in our simple blood donation process and what to expect. Are you eligible? Donating blood is safe …

Jul 23, 2025 · Blood is a fluid present in the body, which is responsible for transporting oxygen, nutrients, hormones, and waste products. Red and white blood cells, platelets, and plasma are the …

Aug 3, 2023 · Blood is a liquid connective tissue made up of blood cells and plasma that circulate inside the blood vessels under the pumping action of the heart.

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.