A type of blood cell that is made in the bone marrow and found in the blood. Red blood cells contain a protein called hemoglobin, which carries oxygen from the lungs to all parts of the body. Checking the number of red blood cells in the blood is usually part of a complete blood cell (CBC) test. It may be used to look for conditions such as anemia, dehydration, malnutrition, and leukemia. Also called erythrocyte and RBC.

Blood Cells

Blood cells are an essential component of the circulatory system, carrying out various functions that are crucial for maintaining overall health and well-being. These cells are produced in the bone marrow through a process known as hematopoiesis. There are three main types of blood cells:

Red Blood Cells (RBCs)
- Red blood cells, also known as erythrocytes, are responsible for carrying oxygen from the lungs to the rest of the body and removing carbon dioxide.
- These cells contain hemoglobin, a protein that binds to oxygen and gives blood its red color.
- The shape of red blood cells is biconcave, allowing for a larger surface area for oxygen exchange.

White Blood Cells (WBCs)
- White blood cells, or leukocytes, play a vital role in the immune system by defending the body against infections and foreign invaders.
- There are different types of white blood cells, each with specific functions such as phagocytosis, antibody production, and immune response coordination.
- WBCs can be further categorized into granulocytes (neutrophils, eosinophils, basophils) and agranulocytes (lymphocytes, monocytes).

Platelets
- Platelets, also known as thrombocytes, are responsible for blood clotting and preventing excessive bleeding.
- These small cell fragments help in the formation of blood clots by sticking together at the site of injury and sealing off the damaged blood vessels.
- Platelets release clotting factors that facilitate the clotting process and help in wound healing.

In conclusion, blood cells are crucial for maintaining homeostasis and ensuring the proper functioning of the body. Each type of blood cell has a specific role to play in the overall health and well-being of an individual. Regular blood cell counts and monitoring are essential to detect any abnormalities or deficiencies that may impact health.

They carry oxygenated blood in the body