The centrosome, a site near the nucleus from which microtubules radiate outward in all directions. The centrosome is the main MICROTUBULE ORGANIZING CENTRE (MTOC) of the cell, anchoring the microtubule cytoskeleton during interphase and positioning many cytoplasmic organelles.
The centrosome contains CENTRIOLES who generate the microtubules needed for flagella and cilia, the extensions that provide cell mobility. ASTERS are the centrosomes at the spindle tips which form the poles of the spindle.
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