Even the smell of food can generate saliva, which is secreted by the salivary glands in the mouth, contains an enzyme, salivary amylase, which breaks down starch. Teeth, which are part of the skeletal system, play a key role in digestion. In carnivores, teeth are designed for killing and breaking down meat.eferences to the digestive system can be traced back to the ancient Egyptians. Some milestones in the study of the gastrointestinal system include: 1  Claudius Galen (circa 130-200) lived at the end of the ancient Greek period and reviewed the teachings of Hippocrates and other Greek doctors.
Organizational Behavior (OB) is the study and application of knowledge about how people, individuals, and groups act in organizations. It does this by taking a system approach. That is, it interprets people-organization relationships in terms of the whole person, whole group, whole organization, and whole social system.
Working With people. Organizational behavior is the study and application of knowledge about how people&-&- as individuals and groups&-&-act in organizations. Its goals are to make mangers more effective at describing, understanding, predicting, and controlling human behavior.orking With people. Organizational behavior is the study and application of knowledge about how people&-&- as individuals and groups&-&-act in organizations. Its goals are to make mangers more effective at describing, understanding, predicting, and controlling human behavior.