What is blood?

Blood is a fluid connective tissue that circulates throughout the body and transports essential substances to different organs and cells.

It carries oxygen from the lungs to body tissues and transports carbon dioxide back to the lungs for removal. Blood also carries nutrients, hormones, and waste products.

Blood is made up of plasma, red blood cells, white blood cells, and platelets, each performing specific functions.

In addition to transportation, blood helps in protecting the body from infections, regulating body temperature, and maintaining internal balance.

It is an essential component of the circulatory system and plays a vital role in sustaining life.