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.
The symptoms for any kind of ligament injury will be similar, regardless on the extent of damage. Usually, there is a snapping, popping or a cracking sound during the injury, when there is a torn ligament. The usual symptoms include swelling, bruising accompanied with severe pain and pressure on the joint. There is also instabilityâa feeling that the knee is locking or is about to break down.
1 Symptoms of ACL tear include hearing a loud pop as the ligament tears, pain, knee swelling, and difficulty walking. 2  Diagnosis is made clinically by physical examination and usually confirmed by MRI.