The skin is the body's largest organ and helps protect internal organs from harm. Hair helps protect the skin, regulates body temperature, and is part of the body's sensory system. Sweat glands help ...

The thyroid is a butterfly-shaped gland that sits in the front of the neck. It produces hormones that are essential for heart rate, digestion, mood, and other functions crucial to human health.

The adrenal glands are two small glands located on top of the kidneys. They produce hormones that help regulate heart rate, blood pressure, the immune system, physical stress response, and other ...