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 recurrent laryngeal nerve (RLN) is critical for speech as it provides nerve function to muscles in the larynx, or voice box. People have two RLNs, one on each side of the neck. Instead of ...

The integumentary system comprises the skin, hair, nails, and glands that produce sweat and oil. It is a complex organ that helps protect the body and regulates various essential processes. These ...