Short Answer
Blood is made up of four main components: red blood cells, white blood cells, platelets, and plasma. Together, they transport oxygen, fight infections, control bleeding, and carry nutrients throughout the body.
Detailed Explanation
Blood is a living tissue that circulates continuously through your body. It performs many essential functions that keep us alive.
Blood consists of:
- Red Blood Cells (RBCs) – Carry oxygen from the lungs to the body's tissues.
- White Blood Cells (WBCs) – Help protect the body against infections and diseases.
- Platelets – Help blood clot and stop bleeding after an injury.
- Plasma – The yellowish liquid that carries blood cells, nutrients, hormones, proteins, and waste products throughout the body.
Each component has a unique role. When someone donates blood, these components can often be separated so that different patients receive only the part they need.
Quick Facts
• About 55% of blood is plasma.
• About 45% consists mainly of blood cells.
• Every component performs a different lifesaving function.
• Blood constantly circulates throughout the body.
Did You Know?
An average adult has about 4.5–5.5 litres of blood circulating throughout the body.
❤️ Become a Lifesaver
Every drop of donated blood contains lifesaving components. By donating blood, you're giving patients exactly what they need to recover.
