White blood cells and platelets account for less than 1% of your blood. Blood carries oxygen throughout your body, protects you from infections and stops the bleeding when you’re injured.

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 …

Mar 16, 2023 · The blood transports oxygen from the lungs to the cells of the body, where it is needed for metabolism. The carbon dioxide produced during metabolism is carried back to the …

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

Transporting oxygen and nutrients to the lungs and tissues. Forming blood clots to prevent excess blood loss. Carrying cells and antibodies that fight infection. Bringing waste products to the …

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 …

Jan 16, 2024 · Blood supplies essential substances, such as sugars and oxygen, to cells and organs, and removes waste from cells. Hematologists work to identify and prevent blood and …

Blood transports waste substances to the organs that remove and process them for elimination. Blood flows into the kidneys through the renal arteries and out through the renal veins.

The primary function of blood is to deliver oxygen and nutrients to, and remove wastes from, the body cells; but that is only the beginning of the story. The specific functions of blood also …

2.2 Components of the Blood The Role of Blood in the Body Most of us have suffered a cut or a scraped knee and have seen our own blood. What exactly is blood, and what does it do? …