The human body is like a complex machine with many parts (organs) that work together to keep us alive. Here is a quick overview of these body systems, which will help you understand how the organs you learn about later fit into the bigger picture.

0:00 Circulatory System
0:34 Respiratory System
1:06 Digestive System
1:44 Nervous System
2:21 Endocrine System
2:57 Muscular System
3:38 Skeletal System
4:14 Integumentary System
4:53 Lymphatic System
5:31 Immune System
6:13 Urinary System
6:46 Reproductive System

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