Your jaw is connected to the temporal bones of your skull, which are located in front of each ear, on account of the joint, which functions as a hinge. You will be able to eat, speak, and yawn since it allows you to move your jaw in a vertical and horizontal direction. Injuries that are directly to the jaw, joint, or the muscles of the head and neck, such as those that result from a strong impact or whiplash, are the causes of temporomandibular disorder (TMD). Pressure may also be applied by activities such as grinding your teeth or clenching your teeth. Arthritis and stress are two more potential reasons.