Summary Chapter 5 Integumentary System I Seeley's Essentials of Anatomy and Physiology, 9th Edition I Johmel De Ocampo

The text discusses the integumentary system, which consists of the skin, hair, glands, and nails. The skin performs several important functions, including protection, sensation, vitamin D production, temperature regulation, and excretion. The epidermis is the outer layer of skin and consists of stratified squamous epithelium divided into strata. The dermis is made of dense connective tissue and contains blood vessels, nerves, and skin appendages. Melanocytes in the dermis produce melanin that determines skin color. The subcutaneous tissue contains adipose tissue and attaches the skin to underlying structures. Accessory structures include hair, nails, and glands. The integumentary system protects the body through the skin barrier, hair, and nails. The skin contains sensory receptors that allow for sensation. Ultraviolet light stimulates vitamin D production in the skin. The skin and sweat glands regulate body temperature. The skin excretes small amounts of waste. Skin conditions and color changes can indicate underlying health issues. Burns are classified based on the extent of skin damage. The text discusses different types of skin cancer and conditions like eczema and acne.