The human body is mainly composed of trillion cells which are considered as the fundamental unit of life.
The group of similar cells with similar functions forms a tissue. These tissues combine together to form organs and form an organ system, which finally gives rise to an individual. Altogether there were seventy-eight main organs within the human body. Now there are 79 organs in the human body. This updated information is based on naming of a new organ, the mesentery in digestive system, which connects the intestine to the stomach, was previously thought to be made up of lots of separate parts. The mesentery is a double fold of the peritoneum, the lining of the abdominal cavity, which attaches the stomach, small intestine, colon and other organs to the abdomen. And it could have a role to play in diseases such as colorectal cancer, inflammatory bowel disease, diabetes and obesity.
Among these 79 organs, five organs are considered vital for survival. These include the heart, brain, kidneys, liver and lungs. If any of these five organs stop functioning even for a few seconds death will result without any medical intervention. Therefore, it is always advised by the doctors to keep our system healthy, maintain a balanced diet, adequate sleep, regular physical activities and focus on healthy lifestyle changes. Altogether, there are 10 large organs in the body, which include skin, liver, brain, lungs, heart, kidney, spleen, pancreas, thyroid and joints.