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Class- 11th, Chapter-3, Short Que-Ans
ਸਰੀਰਕ ਰਚਨਾ ਤੇ ਕਿਰਿਆ ਵਿਗਿਆਨ ਦੀ ਜਾਣ-ਪਛਾਣ (3)
3 ਅੰਕ ਦੇ ਪ੍ਰਸ਼ਨ ਉੱਤਰ A. Physiology is a branch of human biology that studies the changes caused by the various functions of the internal organs of the human body. In daily life, various physical activities are performed by a human being. These activities cause many changes in the organs and systems of the body such as increase in the size and ability of the heart, lungs, intestines, liver, muscles, etc. to function. The study of these changes is called physiology. "It is the science that deals with the study of changes in the body due to various functions of the human body such as the respiratory system, the excretory system, the nervous system, the circulatory system, etc."