1.1 POJA-L724. Promegakaryocyte

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1.1  POJA-L724

Title: Promegakaryocyte
 
Description: Scheme electron microscopy.

The promegakaryocyte (20-80 mm) develops from a basophilic megakaryoblast (up to 50 mm) that originates from a committed stem cell. The large promegakaryocyte starts with the early synthesis of the characteristic granules of platelets. Apart from a bilobed nucleus (1) and few nucleoli, a well developed Golgi area (2), some rough endoplasmic profiles (3) and polysomes are present. This cell contains already electron-dense granules (4).
 
Keywords/Mesh:  blood, bone marrow, promegakaryocyte, megakaryocyte, histology, electron microscopy, POJA collection