|
HUMAN ANATOMY The body is made of
cells. Cells group together
to form tissues, which join to make organs. Organs are tissues joined
together to perform specific functions, such as the heart, kidneys, and
lungs. When different organs
join together, they are called organ systems. There are 9 main organ systems in the human body. They are the digestive, excretory, circulatory, respiratory, nervous, skeletal, reproductive, muscular, and endocrine systems.
|
|
 |
ANATOMY PAGES
|
