Define the terms prime movers, synergist and antagonists 6. Name the muscles of the head that are involved in: a. facial expression b. chewing 7. Name all the muscles of the anterior abdominal wall 8. What is the path of air from the nose to the lungs? Describe the structure and state the function of all the organs mentioned. 9.Trace the path of urine, and describe the function of each organ mentioned 10. Explain how urination is controlled.