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.
Distance Calculated from Barcelona in Spain to Madrid in Spain. Approx distance in miles from Barcelona to Madrid is 313 miles or 503.62 KMS. This page was designed to give you a good indication of the distance from Barcelona to Madrid.
The driving distance from Madrid to Barcelona is approximately 4-1/2 to 5 hours, unless you stop for lunch along the way, which I suggest. You follow the NII/E90 out of Madrid to Zaragoza before taking the A2/E90 to Lleida and finally into Barcelona. You'd be advised to purchase the Michelin Regional Map #572 which covers this are in detail.