tsütoskeemi

Tsütoskeemi refers to the cytoskeleton of a cell. It is a dynamic network of protein filaments and tubules in the cytoplasm of many living cells, giving them shape and coherence. The cytoskeleton is composed of three main types of filaments: actin filaments, intermediate filaments, and microtubules. These filaments interact with each other and with motor proteins to provide mechanical support, enable cell movement, and play crucial roles in cell division and intracellular transport. Actin filaments are thin filaments involved in muscle contraction, cell shape, and cell motility. Intermediate filaments provide mechanical strength and help maintain cell shape. Microtubules are hollow tubes that serve as tracks for motor proteins to move organelles and vesicles within the cell, and they are also involved in forming the spindle apparatus during cell division. The constant assembly and disassembly of these filaments allow the cell to change its shape, divide, and move.