Jenas, with England boss Fabio Capello in the stands, broke the deadlock just before the break to keep his side in the hunt for a seventh-placed finish that would earn European football.
The chant of "1-0 to the Tottenham" could become familiar to Spurs fans - they have won by that scoreline now in their last four home games.
Jermaine Jenas scored the only goal of the game as Spurs downed West Brom 1-0 at White Hart Lane
They were bottom when Harry Redknapp took over in October but are finishing the season strongly, while Tony Mowbray's men look like they need a miracle. Tottenham v West brom: How the game unfoldedWigan 0-0 BoltonTOTTENHAM