There are 11 major organ systems in the human body. These systems work together to maintain bodily functions and homeostasis. The 11 systems are:
- Integumentary system (skin and related structures)
- Skeletal system (bones and joints)
- Muscular system (muscles)
- Nervous system (brain, spinal cord, nerves)
- Cardiovascular (circulatory) system (heart and blood vessels)
- Lymphatic system (immune defense and fluid drainage)
- Respiratory system (lungs and airways)
- Digestive system (gastrointestinal tract and accessory organs)
- Urinary (excretory) system (kidneys, bladder, etc.)
- Endocrine system (hormone-producing glands)
- Reproductive system (organs for reproduction)
These systems overlap in function but each has distinct roles essential for survival and health. For example, the circulatory system transports oxygen and nutrients, while the nervous system controls body functions and responses
