Hematopoietic system

Hematopoietic System

The Hematopoietic System is a complex biological system responsible for the production of all the types of blood cells in the body. This includes red blood cells, white blood cells, and platelets. The process of blood cell production is known as hematopoiesis.

Overview

The hematopoietic system is primarily located in the bone marrow, a spongy tissue found in the hollow interior of long bones. In adults, the bone marrow in the spine, ribs, hips, skull and sternum is actively involved in hematopoiesis.

Hematopoiesis

Hematopoiesis is the process by which the body produces blood cells. This process begins with a hematopoietic stem cell, which is a type of stem cell that has the potential to develop into any type of blood cell. Through a series of differentiation and maturation steps, these stem cells give rise to all the different types of blood cells.

Components of the Hematopoietic System

Red Blood Cells

Red blood cells, or erythrocytes, are the most common type of blood cell. They are responsible for carrying oxygen from the lungs to the rest of the body.

White Blood Cells

White blood cells, or leukocytes, are part of the body's immune system. They help the body fight off infections and other diseases.

Platelets

Platelets, or thrombocytes, are small, colorless cell fragments in our blood that form clots and stop or prevent bleeding.

Disorders of the Hematopoietic System

Disorders of the hematopoietic system can lead to a variety of health problems. These include anemia, in which the body does not have enough red blood cells, and leukemia, a type of cancer that affects the white blood cells.

See Also

• Hematology
• Blood cell
• Bone marrow