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 …

1 day ago · Latest in Blood Free Articles Introduction to a review series on platelet heterogeneity

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

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% …

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 functions. These …

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

The main job of white blood cells, or leukocytes, is to fight infection. There are several types of white blood cells, and each has its own role in fighting bacterial, viral, fungal, and parasitic infections.

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.

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? Blood, like the …

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.