This Module aims to introduce the concept of the pathological changes which occur with common
human disease. It will illustrate the gross and the microscopic changes that occur and how they affect
the function of the body. In addition, this Module aims to study the action of drugs on the biological
systems and the effect of the latter on the action of drugs. The Module focuses on the interactions that
occur between a macro and micro structures of the body and chemicals that affect normal or abnormal
biochemical functions.