Wales boss Rob Howley has named an unchanged team for Friday's RBS 6 Nations clash against Ireland in Cardiff.
Wales rugby coach Rob Howley hailed his side's resilience after they rebounded from back-to-back Six Nations defeats to beat Ireland 22-9 on Friday.
Although Halfpenny sent the conversion attempt wide, the home side led 5-3 after a pulsating opening quarter.
Ireland piled on the pressure but they came up short after a resolute Welsh defence held firm, with their only score coming through Sexton's boot in 57th minute.
A brace of scores took North's global tally to 30 tries in 68 Tests, fourth in an all-time Wales try scorers' list led by Shane Williams on 58, followed by Gareth Thomas, 40, and Ieuan Evans, 33.
For all their fervour and sense of objective in front of their own supporters, they would have been staring at defeat but for a moment of stupidity from Ireland's centre Robbie Henshaw who, 11 minutes from time with his side trailing 15-9, joined from the side a maul that was heading for the home line without him and turned a certain try for Ireland into a penalty for Wales.
Wales had only mustered two tries in their previous two Six Nations defeats, but they showed their cutting edge to overcome Joe Schmidt's hotly tipped side.
It left them with just one win, a thrashing of Italy, from their first three matches but Howley refused to make any changes to his starting line-up.
However the tide quickly turned and Wales scored a superb try through Gareth North on the 20th minute.
And Wales assistant coach Robin McBryde said: "We hope they (players) feel a bit galvanised by the fact they get to go again and step up their performance".
Man of the match Rhys Webb: "I was pretty nervous at the end but I know from the last three games there have been fine margins from winning these games". Credit to the boys.
"We owe a lot to the coaches but in fairness they've been backing us to play and backing our ability".
Wales captain Alun Wyn Jones: "With a large proportion of Welsh people in this stadium, we owed it to them firstly and then secondly to ourselves".
"It was tough. We scored 10 points in the 10 minutes we were down to 14 men and that's hard to come back from".
To the relief of those wearing green in the Principality Stadium, Sexton was given the clear to return, but moments later Murray took a heavy blow to the arm which looked to effect his passing in the latter stages of the first-half.
"For me, I am just happy to be back playing with a bit of confidence and a bit of form now, and hopefully we can carry it forward into France next week, both individually and as a team".