With hard numbers or estimates from all but three of the 49 states that have laws allowing for issuance of carry permits, the U.S. Government Accountability Office reports that there were about 8 million active permits in the United States as of December 31, 2011.
Mar 18, 2016. There are 11 major organ systems in our body. This includes the circulatory, respiratory, digestive, excretory, nervous, and endocrine systems. As well as the immune, skeletal, reproductive, muscle and integumentary systems.
Human anatomy is the study of the systems of the body which is made up of cells, tissues, and organs. Human anatomy is important to study to help explain how organs and other structures of the body work. There are eight systems in the human body.Each system relies on the other to keep the body functioning. The systems of the body includes the circulatory, immune, skeletal, excretory, muscular, endocrine, digestive, nervous and respiratory. It is important to understand how human body systems work together.here are eight systems in the human body. Each system relies on the other to keep the body functioning. The systems of the body includes the circulatory, immune, skeletal, excretory, muscular, endocrine, digestive, nervous and respiratory.