In some cases, passing a drivers ed final exam can substitute for the written exam. No matter how the test is taken, students must pass with at least a 70% or higher, depending on that stateâs minimum. Once he or she passes, a teen driver will be issued a learners permit.
Learn how to protect your knees and reduce your risk of injury. The knee's vulnerability to injury depends on the strength of its neighboring muscles. A weak gluteus medius, or outer gluteal muscle, increases the chance of a knee injury by a factor of three. This muscle is critical for knee health, because it acts as a steering wheel for the entire leg.
Posterior Cruciate Ligament Injury. Bending or extending the knee beyond its range of motion or injury to the side of the knee while the leg is twisted can cause the knee to give out or buckle. Attaching the femur to the tibia are ligaments.The cruciate ligaments connect these two bones with an X shaped ligament across the back and front of the knee.osterior Cruciate Ligament Injury. Bending or extending the knee beyond its range of motion or injury to the side of the knee while the leg is twisted can cause the knee to give out or buckle. Attaching the femur to the tibia are ligaments.