Microfilaments
Definition
Microfilaments are thin, thread-like structures in cells that are important for maintaining the cell's shape and enabling movement.
Scientific / Technical Definition
Microfilaments are polymers of the protein actin, forming part of the cell's cytoskeleton. They are approximately 7 nm in diameter and play a vital role in cell motility, structure, and intracellular transport. In muscle cells, they are involved in muscle contraction by interacting with myosin filaments.
Benefits
- Support cellular structure and integrity
- Facilitate muscle contraction and movement
- Aid in cell division and signaling
- Involved in wound healing through cell movement
Examples
- Muscle fibers contain actin-based microfilaments
- In non-muscle cells, actin filaments help in the transportation of organelles and vesicles
Additional Information
- Importance: Microfilaments are crucial for muscle growth and repair as they are central to the process of muscle contraction. They also play an important role in various cellular movements and stability.
Related Terms
References
Last updated: 10/26/2024