Anatomy & Physiology

The largest human organ is skin! Every inch of skin is made up of millions of tiny receptors that allow us to feel the world around us. Each type of receptor has a job. Some tell us the… More →

Chilling winds rush in through an open doorway. Snow swirls in the air. Winter has arrived! Animals grow thick coats to guard from the frigid temperatures, and people bundle up in parkas and… More →