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- Microfilaments are one out of the three main kinds of fibers that make up the cytoskeleton
- They are solid rods that are made up of globular proteins called actin that are made up in double chains
- They form a 3D network in the plasma membrane that help suppose the cell's shape
- They are involved in cell movements
- Contain actin subunits
- They are involved in the cause of muscle contraction alongside with thicker filaments that are made of motor proteins myosin
-Microfilaments is about 7nm thick [(seven nanometers) according to the textbook)]