The effects, both short term and long-term, of physical activity on each of the major organ systems of human body. You are aware that a healthy individual is one who has a healthy mind in a healthy body. This state of health can be achieved when various organ systems of the body function in harmony. For example, physical activities are based on motor movements and their co-ordination. The command for movements comes from the brain which is a part of the nervous system. The required energy for movements and other activities is obtained from food. Food is completely digested in the intestine, a part of digestive system. Food and oxygen reach all the parts of body through the action of heart, which is a part of the circulatory system. In fact, many organ systems of the body function as an integrated whole for healthy maintenance of the body.
You have already studied about organ systems of the human body in the previous science classes. In this chapter, the organ systems have been discussed in relation to the effect of physical activities. It is a common experience that performance in any event, sports or otherwise, depends upon physical health, as well as, mental and emotional health. Development and maintenance of physical, mental and emotional health specially during this coronavirus (COVID-19) is therefore, very important.
