ANAT 262 Lecture Notes - Lecture 18: Spindle Apparatus, Sister Chromatids, Nuclear Membrane
15 Jul 2016
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Document Summary
Site in the cell where mt assembly is initiated. The centrosome is a microtubule organizing center (mtoc). During interphase, the centrosome (and centrioles) is duplicated and during mitosis the two centrosomes separate and serve as spindle poles, with the + ends point out to the cortex. The centrosome, which contains a characteristic structural component - the centrioles - these cylindrical structures (the pair of centrioles) are arranged at right angle to each other and in l shaped configuration. Centrosome is a cloud of proteins around the centrioles, peri-centriolar matrix. In this cloud, you have embedding of yruc. Each centriole of the pair shown in the centrosome has the same structure of the basal body. Each centriole (or basal body) is a cylinder 0. 2 m wide x 0. 4 m long. Each mt triplet contains one complete mt (a tubule) and 2 attached incomplete mts (b and c tubules), which share walls with the adjacent mts.
