Look and see how they work like a series of hooks. One pulls on the other, or releases when it's time to relax. They are a structural component. They are the scaffolding of life. They help the cell keep its shape.
Microtubules are a different type of protein than the microfilaments.
Notice that there is a higher concentration of microtubules around the membrane, nucleus and organelles. Andrew Rader Studios, All rights reserved.