Arizona Robbins, introduced in the fifth season, is the head of pediatric surgery at Seattle Grace Hospital. She has a great heart and works very well with children and their parents. Nonetheless, she is unsure about whether she wants children of her own. She comes from a military family and attended Johns Hopkins School of Medicine in Baltimore. Perhaps because of the military background in her family, Arizona has a strong and strict sense of right and wrong. Arizona is a lesbian and soon begins a relationship with Callie Torres.Arizona's cool and easy style of communication salvages her relationship with Callie