Cytoskeleton Tutorial Cytoskeleton Tutorial External cell movement Cellular movement Cellular movement is accomplished by cilia and flagella. Cilia are hair-like structures that can beat in synchrony causing the movement of unicellular paramaecium. Cilia are also found in specialize linings in eukaryotes. For example, cilia sweep fluids past stationary cells in the lining of trachea and tubes of female oviduct.
Flagella are whip-like appendages that undulate to move cells.
They are longer than cilia, but have similar internal structures made of microtubules. Prokaryotic and eukaryotic flagella differ greatly. This arrangement refers to the 9 fused pairs of microtubules on the outside of a cylinder, and the 2 unfused microtubules in the center. Defective dynein arms cause male infertility and also lead to respiratory tract and sinus problems. All rights reserved.