The 2006 and 2008 champions have an eight-point lead in Pool 2 and will now be guaranteed a place in the last eight if they beat Exeter at home next weekend. They did that in a long passage of play where Munster captain O'Mahony went off.
But matters continued to deteriorate for Gloucester, and they were stung by a second Munster try during the dying moments of a one-sided first half.
Some patient play saw Munster inch towards the try line before Rory Scannell shrugged off a number of tackles to touch down after 26 phrases.
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Another scrum penalty was awarded to the visitors near halfway in the 22nd minute, and two minutes later Munster were over for the first try of the day through playmaker Carbery.
Twelvetrees missed the conversion attempt, but no sooner had Gloucester given themselves a glimmer of hope than Munster ruthlessly snuffed it out when replacement back-row forward Billy Holland delivered a brilliant off-load to Earls, who dived over.
However, an inventive Carbery kick in behind the defence was fastened onto by Conway who gobbled it up to deservedly register the bonus point.
Seconds after the restart, Munster had a fifth try to rack up over 40 points when Carbery - capping a sensational individual display - intercepted a Morgan pass to sprint in untouched from his own half for the final points of the night. Now, to come through with flying colours with the next 17 place-kicks out of 17 being nailed, to maintain a style, to have the calmness and rhythm to strike and to trust the process and to do it under pressure in key games - he's now been the starting 10 in wins against Leinster, a European game over in Gloucester and obviously that late Connacht win - so he's coming of age as a 10.
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The odd birdie here and there is great. "I'm like, 'Wouldn't it just be a re-drop anyway?' What's the big deal?'" Spieth said. Fortunately a rules official reminded him of his error before he had played his next shot.
Gloucester knew they had to score first to have any chance of sustaining a comeback.
"I think it's fair to give players opportunities who have been quite patient to have an opportunity and give them a crack at playing in this competition". I thought we were clinical and I'm very happy with that bonus point.
Cipriani produced a wonderful kick to the corner but Munster's defence was oppressive, forcing the Gloucester line back before three more penalties followed from Farrell, O'Mahony and Murray, with referee Romain Poite warning the away side about their discipline.
"It looks like a rib, but we will take our time on it and reassess on Monday".
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