How the organ system are in the human body?
There are 11. The immune, integumentary, skeletal, muscular,
nervous, endocrine, cardiovascular, lymphatic, respiratory,
digestive, urinary, and reproductive systems.
But there are only 8 major organ systems in the body. They are:
the skeletal, muscular, nervous, digestive, respiratory,
cardiovascular, reproductive, and urinary systems.