Keratin is a fibrous protein that serves numerous essential roles in the human body. It is the primary building block for various structures, including hair, nails, and the outermost layer of skin, the epidermis.
Functions of Keratin:
- Structural Support: Keratin provides strength and resilience to tissues like skin, hair, and nails. It forms a protective barrier against external factors.
- Protection: Keratin shields the body from environmental damage, such as UV radiation, chemicals, and pathogens. It also contributes to the waterproofing of the skin.
- Cellular Regulation: Some keratin proteins regulate key cellular activities, including cell growth and protein synthesis.
- Internal Organ Strengthening: Keratin strengthens and supports internal organs, contributing to their overall function and integrity.
- Elasticity Maintenance: Keratin helps maintain the elasticity and flexibility of tissues, allowing them to stretch and recover from stress.
Keratin plays a crucial role in maintaining the body's integrity and protecting it from various external threats. It is a fundamental component of several tissues, contributing to their structural integrity, protective capabilities, and overall functionality.
