What are the major biological systems in the human body?

There are 11 major biological systems in the human body. Each system is made up of distinct components and each serves a specific function.  

1. Musculoskeletal system
2. Integumentary system
3. Nervous system 
4. Cardiovascular system
5. Endocrine system
6. Respiratory system
7. Digestive system
8. Lymphatic system
9. Reproductive system
10. Urinary system