<em>Cartilaginous joints</em> is not a functional classification for joints.
Answer: Option 2
Explanation:
The joints are classified based upon their <em>structure and function</em>. Based upon the composition as well as presence or absence of the cavity, the joints are <em>structurally</em> classified as:
- Fibrous joints
- Cartilaginous joints
- Synovial joints
On the other hand, based upon the functions performed by the joints, the <em>functional </em>classification of joints are as follows:
- Diarthrosis
- Amphiarthrosis
- Synarthrosis
Thus it is inferred that, cartilaginous joint is structural classification of joints, not functional.
