Megakaryocytes
Megakaryocytes
Megakaryocytes (pronounced: meh-guh-KAR-ee-oh-sites) are large bone marrow cells that are responsible for the production of platelets, which are crucial for blood clotting. The term "megakaryocyte" is derived from the Greek words "megas" meaning "large" and "karyon" meaning "nucleus," referring to the cell's large size and multi-lobed nucleus.
Etymology
The term "megakaryocyte" is derived from the Greek words "megas" meaning "large" and "karyon" meaning "nucleus." This is in reference to the large size of the cell and its multi-lobed nucleus.
Function
Megakaryocytes are primarily responsible for the production of platelets, which are small, disc-shaped cell fragments that play a crucial role in blood clotting. They do this through a process known as thrombopoiesis, in which the megakaryocyte extends long, branching processes called proplatelets into the blood vessels. These proplatelets then break off into individual platelets.
Related Terms
- Thrombopoiesis: The process by which megakaryocytes produce platelets.
- Platelet: Small, disc-shaped cell fragments produced by megakaryocytes that play a crucial role in blood clotting.
- Bone marrow: The spongy tissue inside bones where blood cells, including megakaryocytes, are produced.
- Blood clotting: The process by which blood changes from a liquid to a gel, forming a clot. This process is crucial in preventing excessive bleeding and is facilitated by platelets.
External links
- Medical encyclopedia article on Megakaryocytes
- Wikipedia's article - Megakaryocytes
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