According to Hilton's law, the nerves supplying the muscles acting on a joint also supply the joint itself. Applying this law, which nerve provides articular branches to the posteromedial capsule of the knee joint?
- A Nerve to vastus medialis only
- B Common fibular nerve
- C Tibial nerve ✓
- D Obturator nerve only
Correct answer: C. Tibial nerve
Explanation
By Hilton's law the knee receives articular branches from the nerves crossing it: femoral (via nerves to the vasti), tibial, common fibular, and obturator. The tibial nerve supplies the posterior and posteromedial capsule because the muscles it supplies, the gastrocnemius and hamstrings, act across that part of the joint. The common fibular nerve supplies the anterolateral capsule, not the posteromedial region.
Reference: Last's Anatomy, 13th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.