* Mature nerve cells (neurons): While some neurons can regenerate, most do not go through mitosis after reaching maturity. This is why brain injuries are often permanent.
* Mature muscle cells (muscle fibers): Similar to neurons, muscle cells generally don't divide after reaching maturity. However, they can grow in size, leading to muscle hypertrophy.
* Red blood cells (erythrocytes): Mature red blood cells lose their nucleus and other organelles, making them unable to divide. They are continuously replaced by new red blood cells produced in the bone marrow.
* Some cells in the lens of the eye: These cells lose their ability to divide to maintain the transparency of the lens.
It's important to note that some cells that typically don't divide can sometimes undergo mitosis under specific circumstances. For example, muscle cells can divide in response to injury, and some neurons have been shown to divide in certain brain regions. However, these events are relatively rare compared to the constant mitotic activity in other tissues.
