The integumentary system is the physical system that forms the barrier between the external environment and the internal systems of the body. In humans, this system consists of skin, hair, nails, and ...

The skin can absorb nicotine from cigarettes. This may cause adverse effects such as premature skin aging, delayed wound healing, and increased infections. It may also lead to skin diseases like ...

Frogs possess an extraordinary ability to breathe and drink through their permeable skin, a vital adaptation for survival in ...