The main body systems
The main body systems are:
The respiratory system
The nervous system
The reproductive system
The digestive system
The lymphatic system
The cardiovascular system
The renal system
The endocrine system
The immune system
The musculoskeletal system

The respiratory system

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The respiratory system is what helps us with our breathing, it helps us inhale oxygen and exhale card on dioxide, the exchange of gases is work of the respiratory system. It is getting rid of oxygen from the blood, respiration is done when we inhale through the nose or mouth and then goes through the trachea to the lungs in the diaphragm.

Nervous system https://www.google.co.uk/url?sa=i&rct=j&q=nervous+system&source=images&cd=&ved=0CAcQjRw&url=http%3A%2F%2Fwww.everythingessential.me%2FHealthConcerns%2FNerveDamage.html&ei=XV_SVIm_Ouyz7gbpiICoCQ&bvm=bv.85076809,d.ZGU&psig=AFQjCNG4LzMWFxkYd9INMwbGXEaZSf26wQ&ust=1423159511723905 The nervous system is all connected to the spinal cord which gets information from the skin, joints, and muscles of the body, it carries the nerves that are controlling your movements. The brain is the part of the nervous system that is the most complicated part of the nervous system.

Reproductive system http://brittanyfoye.weebly.com/female-reproductive-system.html The reproductive system are the organs that structures that give the female body the ability to be able to produce ova, an ovum is one egg and ova means multiple eggs that are produced to be fertilised by sperm. They also are providing a place for the baby to grow and develop while they are pregnant.
The male reproductive system