Which structure attaches to the intercondylar eminence with the medial and lateral tubercles?

Which structure attaches to the intercondylar eminence with the medial and lateral tubercles?

• A. Posterior cruciate ligament
• B. Medial meniscus
• C. Anterior cruciate ligament
• D. Lateral meniscus

Answer: (C)

The intercondylar eminence on the tibia has medial and lateral tubercles that mark the anterior intercondylar area. The structure that attaches right there, between those tubercles, is the anterior cruciate ligament. It crosses upward and backward from the tibial intercondylar region to the femur, stabilizing the knee by preventing the tibia from sliding too far forward relative to the femur. The posterior cruciate ligament attaches to the posterior intercondylar area (behind the tubercles), so it isn’t between them. The menisci attach around the tibial plateau—via their horns to the intercondylar region—but their primary attachments are to the rims and horns rather than directly to the intercondylar eminence between the tubercles.

The intercondylar eminence on the tibia has medial and lateral tubercles that mark the anterior intercondylar area. The structure that attaches right there, between those tubercles, is the anterior cruciate ligament. It crosses upward and backward from the tibial intercondylar region to the femur, stabilizing the knee by preventing the tibia from sliding too far forward relative to the femur.

The posterior cruciate ligament attaches to the posterior intercondylar area (behind the tubercles), so it isn’t between them. The menisci attach around the tibial plateau—via their horns to the intercondylar region—but their primary attachments are to the rims and horns rather than directly to the intercondylar eminence between the tubercles.