10 Major Human Body System

In order to survive all the body systems in an animal need to function together. In all there are 10 major human body systems. Three of these systems are the skeletal system, muscular system, and the digestive system. The skeletal system supports and protects our inner organs. Without it we would be like a big bowl of jello, and your organs would get glopped by the rest of your body. Our bones make it possible to move. To help us move better we have four different types of joints. A joint is where two bones meet. The four types are hinge joint, ball and socket joint, pivot joint, and gliding joint. There are also some joints like the ones in your skull that don’t move. You also have four main types of bones long bones like the ones in your
Without muscles we wouldn’t be able to move. A few of the jobs that muscles perform are to move your bones, help digest food, and pump blood in the heart. In order to move, walk, run, etc. Tendons are required. The skeletal muscles are where tendons are most used. The tendons are tough, non-stretchy bands that fasten the muscles to the bones. When a pair of muscles move one of them contracts while the other relaxes. Another type of muscle is the cardiac muscle. The cardiac muscle is the heart, it is the strongest muscle in your body. Being an involuntary muscle, the heart/cardiac muscle generates constantly, never stops, and never tires. The final type of major muscle is the smooth muscles. They are located on the walls of your internal organs. One example of smooth muscles job is to contract the uterus (womb) during childbirth, and help pump blood through the body. The final job of the smooth muscles is to force food through intestines during
The answer is the digestive system. Without it you wouldn’t get any nutrients from the food you eat, so you would starve to death. At the beginning of the process, The food being chewed is mixed with saliva and passes through the esophagus into the stomach. Once the food is in the stomach it is mixed with digestive juices and churned around. When it is ready the churned food enters the liver. Here a green liquid called bile is produced to help break down fats. When the fats are all broken down, the pancreas makes another juice to convert carbohydrates, proteins, and fats into chemicals for the body. Later in the process the small intestine breaks down the food even more, now some of the broken down food passes through the intestine walls into the blood. Next, the food enters the large intestine. In this part of the body, water and undigested food is absorbed into the blood. Solid waste from the large intestine is stored in the rectum. Now that the food is all digested, the solid waste is pushed out the anus as feces