Which part of human body does not grow from birth to death?

Technically, there is no part of the human body that does not grow at all from birth to death. However, there are some structures that do not experience significant growth or change after a certain age. For example:

1. Nervous System: The number of neurons in the brain is established early in life and does not increase significantly after adolescence. However, the brain can continue to develop and change throughout life through processes such as neuroplasticity.
2. Bones: While bones do continue to grow and remodel throughout life, the rate of growth slows significantly after adolescence. In fact, bones may actually become less dense and more brittle with age, leading to conditions such as osteoporosis.
3. Teeth: Teeth are fully formed by the time a person is in their late teens or early twenties, and do not continue to grow or develop significantly after that point.
4. Cartilage: While cartilage is a type of connective tissue that can regenerate to some extent, it does not undergo significant growth or change after adolescence.

It is important to note that while certain parts of the body may not experience significant growth or change after a certain age, the body as a whole is constantly undergoing cellular turnover and renewal. Additionally, factors such as nutrition, exercise, and lifestyle can have a significant impact on the body’s growth and development throughout life.