Anatomy of the Integumentary System

The document provided an overview of the anatomy of the integumentary system, focusing on the skin, which is the body's largest organ. It described the skin's two main layers: the epidermis and the dermis. The epidermis is a stratified squamous epithelium with keratinocytes that form from stem cells and migrate to the surface, accumulating keratin and undergoing apoptosis. Melanocytes in the epidermis produce melanin, affecting skin color and providing UV protection. The skin also contains structures like hair follicles and various glands, all derived from the epidermis. Additionally, the skin is richly innervated and hosts benign neoplasms such as moles and skin tags.