1001 Space Earth Nature History Human World Prehistoric People Human Body: Systems Human Body: Organs Religions and Festivals Architecture and Buildings Sports and Pastimes Russia and the Middle East Asia Africa Europe North America South America Australasia Polar Regions Science and Technology

Choose a Page:Why do we need kidneys?What are the senses?*What is an organ?*What does the heart do?How do we breathe?How often does the heart beat?How do our eyes work?What does the liver do?What are the main parts of the brain?How do we taste and smell?What are alveoli?Where is the voice box?What happens inside the ear? What is an organ? The body's organs are parts that do one (or more) special job. The heart, lungs, stomach, and brain are all important organs. Groups of organs work together as a system. The nose, throat, windpipe, and lungs make up the respiratory, or breathing system. The human kidney   Previous: Back Book: 1001 Section: Human World Chapter: Human Body: Organs