A tooth (plural teeth) is a small, calcified, whitish structure found in the jaws (or mouths) of many vertebrates and used to break down food. Some animals, particularly carnivores, also use teeth for hunting or for defensive purposes. The roots of teeth are covered by gums.
Symptoms can include: 1  A popping sound (or a popping or snapping feeling) at the time of injury can sometimes be heard (or felt) if a ligament is completely torn. 2  Swelling of your knee. 3  Pain in your knee.  Tenderness around your knee on 1  touching. Not being able to use or move your knee normally.
Back to Top Symptoms. Symptoms of a tear in the lateral collateral ligament are: 1  Knee swelling. 2  Locking or catching of the knee with movement. 3  Pain or tenderness along the outside of the knee.4  Knee gives way, or feels like it is going to give way, when it is active or stressed in a certain way.ymptoms of a tear in the lateral collateral ligament are: 1  Knee swelling. 2  Locking or catching of the knee with movement. 3  Pain or tenderness along the outside of the knee.