What Is the Respiratory System? When we breathe, the respiratory system takes in oxygen and sends out carbon dioxide. The cells in our bodies need fresh oxygen to stay alive. As cells do their jobs, ...

What Is the Digestive System? Food is our fuel, and its nutrients give our bodies' cells the energy and substances they need to work. But before food can do that, it must be digested into small pieces ...

Medically reviewed by: Larissa Hirsch, MDThis link will open in a new window Learn About Cardiology (Heart Care) at Nemours Children's HealthThis link will open in a new window The heart is an organ ...

Medically reviewed by: Maureen F. Edelson, MDThis link will open in a new window Learn About Pathology (Lab Services) at Nemours Children's HealthThis link will open in a new window Blood can't be ...

Medically reviewed by: Tal Grunwald, MDThis link will open in a new window Learn About Endocrinology (Hormones & Growth) at Nemours Children's HealthThis link will open in a new window The thyroid is ...

¿Qué ocurre después del procedimiento de Norwood? Los niños que se han sometido a un procedimiento de Norwood suelen pasar de 3 a 4 semanas en el hospital para recuperarse. Reciben supervisión y ...

Medically reviewed by: Erin A. Teeple, MDThis link will open in a new window Learn About Pediatric General Surgery at Nemours Children's HealthThis link will open in a new window An imperforate anus ...

Medically reviewed by: J. Fernando del Rosario, MDThis link will open in a new window Learn About Gastroenterology (Digestive System Care) at Nemours Children's HealthThis link will open in a new ...

Kawasaki disease is an illness that causes inflammation (swelling and redness) in blood vessels throughout the body. It happens in three phases, and a lasting fever usually is the first sign. The ...

Most of a baby's brain development happens in the first 2 years of life. That's why it's so important for babies and toddlers to explore their environment and experience many sights, sounds, tastes, ...

Why Are the Mouth & Teeth Important? Every time we smile, frown, talk, or eat, we use our mouths and teeth. Our mouths and teeth let us make different facial expressions, form words, eat, drink, and ...

Medically reviewed by: KidsHealth Medical ExpertsThis link will open in a new window Learn About Primary Care Pediatrics at Nemours Children's HealthThis link will open in a new window Every single ...