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. Author manuscript; available in PMC: 2009 Aug 9.
Published in final edited form as: Phys Biol. 2009 Feb 4;6(1):16005. doi: 10.1088/1478-3975/6/1/016005

Figure 1.

Figure 1

(A) Confocal micrograph from a living Drosophila melanogaster syncytial embryo injected with fluorescent tubulin shows images of hundreds of synchronously dividing spindles. (Data obtained by Sharp et al as described in [8]; bar, 50 µm.) (B) Enlarged image of four spindles from A; the aspect ratio of the spindles is estimated as the ratio of the spindle length (segment connecting the spindle poles) to its width (segment at the spindle equator normal to the pole–pole axis). Bar 5 µm. (C) Schematic depiction of the spindle. Only a small fraction of mitotic motors is shown. Four functionally distinct MTs are shown: chromosomal MT (1), interpolar MT (2), astral MT (3) and kinetochore MT (4).