What is the full form of RBC?

The full form of RBC is the Red Blood Cell. RBCs, often known as erythrocytes, are nucleus-free, biconcave human cells. RBCs contain the iron-rich protein known as haemoglobin, which makes blood red. RBCs are the most numerous blood cells produced in the bone marrow.

Iron makes up most of the haemoglobin, which, when combined with oxygen, gives blood its reddish hue. It takes up 40–45% of the total volume of blood.

Few points about RBC

• The blood volume proportion that includes all red blood cells is named hematocrit.
• Roughly 0.5 billion RBCs contain in a single blood drop.
• For each 600 RBC, there are about 40 platelets and one WBC (white blood cell).
• RBCs are continuously made in the bone marrow because they circulate in the blood for around 120 days before being removed by the spleen or liver.
• The bone marrow produces enough RBCs to compensate for the shortage brought on by removing old RBCs.
• A mature human RBC is a small, round, disc-shaped cell without a nucleus. Its diameter varies between 7-8 microns on a peripheral blood smear.
• They possess a flexible membrane that permits them to alter their appearance to pass through the smallest blood arteries or blood capillaries.
• There are roughly 4.5 to 6 million RBCs per cubic millimetre of blood in an adult individual.

The Primary Function of RBC

• A respiratory pigment that binds to molecules of oxygen or carbon dioxide is RBC.
• It involves transporting oxygen to various tissues and organs of the human body.
• It also extracts carbon dioxide to be replenished in the lungs from multiple organs and tissues.

RBC Lifespan

• RBC has a lifetime of 100-120 days.
• They are eliminated via the circulatory system once their life cycle is over.
• The lifespan of RBCs is shortened when a person suffers from chronic diseases.