Enter your Name:   Enter your E-mail Address:  Define the following terms: 01a. Origin 01b. Insertion 01c. Belly 01d. Mastication 02. Identify the muscles in the following figure: 03. The orbicularis oris and what other muscle are called the kissing muscles? 04. Of the muscles in the figure above, name one that acts on the vertebral column. 05. Of the muscles in the figure for question 2, name one that flexes the forearm. Name the antagonist of this muscle. 06. Which of the structures above are not muscles? 07. Name one of the muscles in the figure agove that flexes the thigh. Name an antagonist of this muscle.