in 100 words or more each with references and in text citations answer the 4 questions.

1. 1.    Explain the development of body joints
2. 2.    Discuss the structure of specific body joints and the movements allowed by each
3. 3.    Discuss both functional and structural classifications for body joints
4. 4.    Describe the characteristic features for fibrous, cartilaginous, and synovial joints and give examples of each