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.
DEFINITION of 'Organizational Behavior-OB'. Organizational Behavior (OB) is the study of the way people interact within groups. Normally this study is applied in an attempt to create more efficient business organizations.
- It does this by taking a system approach a Ã  it interprets-people organization relationships in terms of the four â levels the whole, person whole, group whole, organization and whole social. System Organizational behavior is the key aspect to maintain and enhance interaction levels amongst employees in the. company