Final answer:
True, the medial meniscus is susceptible to injury if the MCL is injured due to their attachment, which can lead to a 'terrible triad' of injuries in the knee.
Step-by-step explanation:
The statement 'True/False: If MCL is injured, the medial meniscus is susceptible to injury' is true. The tibial collateral ligament, also known as the medial collateral ligament (MCL), is an important stabilizer of the inner knee. Because the medial meniscus is attached to the tibial collateral ligament, it is susceptible to injury when the MCL is damaged. In fact, a blow to the lateral side of the knee can cause a 'terrible triad' injury involving the MCL, medial meniscus, and anterior cruciate ligament (ACL). This triad highlights the interconnectedness of knee structures and why an MCL injury increases the risk of medial meniscus damage.