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.
Tendons connect the knee bones to the leg muscles that move the knee joint. Ligaments join the knee bones and provide stability to the knee: 1  The anterior cruciate ligament prevents the femur from sliding backward on the tibia (or the tibia sliding forward on the femur).endons connect the knee bones to the leg muscles that move the knee joint. Ligaments join the knee bones and provide stability to the knee: 1  The anterior cruciate ligament prevents the femur from sliding backward on the tibia (or the tibia sliding forward on the femur).