Trombocyt

Thrombocytes, also known as platelets, are small, irregular-shaped cell fragments that circulate in the blood of mammals. They are crucial for hemostasis, the process of stopping bleeding. When a blood vessel is injured, thrombocytes aggregate at the site of damage, forming a plug that helps to seal the wound. They also release various factors that promote blood clotting and tissue repair.

Thrombocytes are produced in the bone marrow from large cells called megakaryocytes. They lack a nucleus and most organelles, but contain granules filled with proteins and other molecules essential for their function. The normal count of thrombocytes in human blood ranges from 150,000 to 400,000 per microliter.

A low platelet count, known as thrombocytopenia, can lead to increased bleeding and bruising. Causes of thrombocytopenia are diverse and include certain medications, viral infections, autoimmune diseases, and bone marrow disorders. Conversely, a high platelet count, or thrombocytosis, can increase the risk of blood clots. This can be caused by inflammation, infection, or certain cancers. The diagnosis and management of thrombocyte-related disorders are important aspects of hematology.