Sural nerve. The sural nerve is a sensory nerve in the calf region (sura) of the leg. It is made up of collateral branches of the tibial nerve and common fibular nerve. Two cutaneous branches, the medial and lateral, form the sural nerve.
1. Re: what's the best way to travel from Barcelona to Madrid ? Without any doubt, the train is the best way to travel between Madrid and Barcelona. It makes the 620 km (385 miles) that exist between both cities in 2 hours and a half, at speeds up to 300 km/h (186 mph).
The driving distance between Madrid and Barcelona is about 600 km. Depending on your driving style, you can reach the destination in about 6.5 hours. The main route is A2 highway (also called Barcelona Road) via Zaragoza.