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Describe the structure and main functions of all major body systems.

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P3-Describe the structure and main functions of all major body systems. The human body is made up of several systems, which contribute and are vital to the proper functioning of the human body. The main systems are: * Cardiovascular (circulatory) system * Respiratory system * Digestive system * Nervous system * Integumantary system * Urinary system * Lymphatic system * Endocrine system * Skeletal system * Muscular system * Reproductive system (male and female) Cardiovascular system is where the heart pumps oxygenated blood around the body and also takes out the carbon dioxide out of the cells. The function of the cardiovascular system is very important for our existence, because it plays a very important role in the body. ...read more.


The digestive system is linked to the stomach and the abdomen area. Without the digestive system we wouldn't be able to consume food. The main function of the digestive system is to break down food into substances which can be absorbed and then delivered to the different cells. The nervous system is closely linked to the spine and the brain because that is where most of the signals came from. The main functions of this system includes, being able to receive and interpret information that it gives from the environment. This system also controls and co-ordinates the internal organs, it's also linked to the endocrine system and its fast, efficient reflex actions protect the body from injury. ...read more.


The endocrine system looks closely at the glands, its main function is to help control and co-ordinate with the organs as well as maintaining water, salt, and blood glucose levels within the body. It also helps in the growth and the reproduction within the body. Skeletal system is linked to the bones of our body, the main function of this system is that it stores calcium with in its self, effects the movement and supports and protects vital organs and it also manufactures many blood cells. The urinary system consists of the kidneys, ureters, urinary bladder and urethra. Its main function is to filter out cellular wastes, toxins and other excess or nutrients from the circulatory system. The kidneys within the system help to maintain the blood pressure. The reproductive system is linked to the female vagina and male penis. The function of this system is to manufacture cells that allows reproduction. ...read more.

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