Protection
- Barrier function of stratum corneum protects against environmental, chemical, and microbial hazards 1
- Limitation of inward and outward passage of water and electrolytes ensures the conservation of the internal milieu 1
- vDurability and elasticity of dermis contributes to protection against physical injury 1
- Melanin production protects against ultra-violet radiation
Regulation
- Temperature homeostasis is maintained by alteration of skin blood flow, sweating, and pilo-erection 1
- Minor role in maintaining fluid balance by avoiding excessive evaporative water loss that would otherwise cause dehydration and cooling
Immune
- Dynamic role in innate and acquired defense systems 1
Metabolic
- Role in Vitamin D synthesis 1
- Capability in transformation of some drugs 1
Neurosensory
- Terminal fibres of sensory nerves and specialized sensory receptors lying within the dermis enable skin to act as a large sensory organ 1
Social
- Visible portion of body covering