The digestive and excretory systems are very important organs of our body which plays their respective and essential roles in the metabolism of the body. Any malfunctioning in that affects the working of other body pars also. Their care is very much important. Everyone should be known to the relevant and necessary information so that the precautions can be taken very easily. Right information about digestive system and excretory system is necessary.
To understand their respective working and their good and bad effects on the body, it is very important to understand both the systems.
•    The digestive system is an energy system of our body. It works like a fuel for the body. The human body uses the energy to move and leave the waste behind.
•    The digestive system breaks down the food so that it can be used fully. The process of digestion starts from our mouth when the food is churned by the teeth and chewed with the help of saliva produced in mouth.
•    The saliva starts initial breaking down of food. After then this food move down to the throat, the epiglottis which is a hanging organ in the mid of mouth and throat stops the food from entering into the wind pipe.
•     With the help of muscle contraction in the esophagus, which is a food pipe, the food reached down to the stomach. Here the food mixed with the acids.
•    Then the mixed food moves to the small intestine. In this intestine the digestion takes place and the essential and needed nutrients are absorbed there.

•     From here the food enters in the large intestine and here it is absorbed completely while the food which cannot be absorbed enters the colon and becomes waste.
Here the working process of digestive system ends and the excretory system starts.
•    Excretory system helps animals to get rid of chemical waste otherwise it can prove to be poisonous for the body. With the help of excretory system we can get rid of all chemical waste.
•    This system also helps to maintain homeostasis of the body. Proper functioning of this system is very much important as if constipation occurs then the chemical waste accumulated in the body can raise many other diseases.
•    Our body cells produce waste like carbon dioxide, urea, and salt. If this waste is not removed from the body then it can be very toxic and cause difficulty in maintaining the metabolism of the body. The digestive system and excretory system are very important systems and it is very important to understand them completely because only then a person can take proper care of them, by taking effective steps.
Healthy food, lifestyle modifications and daily exercise is very important in making both the systems healthy.