When the officials sent Lowe off the floor, he waved off the trainer and stood behind coach Pat Chambers. With the Terriers trailing, the first-year coach turned and whispered a plea to his senior cocaptain.

“I said, ‘If you don’t go back in, we’re in big trouble here. So get back in there,’ ’’ Chambers said. “And he did.’’

Lowe shook off the injury and what to that point had been a poor game for him, making a shot to send the game into overtime, then scoring 5 points in the extra period as the Terriers beat the Huskies, 69-64, yesterday at Case Gym.

“We got a little lucky, that’s the honest truth,’’ Chambers said.

The Terriers trailed, 53-47, with 3:06 left before scoring the final 6 points of regulation. Lowe blocked a shot by Matt Janning with 1:18 to go, then a hit a jumper with 23 seconds left to tie it.

Coming out of a timeout, Lowe was the third option. But with the shot clock ticking down, he had the ball in his hands.

“Everyone else was covered, so I knew I had to make a play,’’ he said. “I shot it with confidence.’’

Lowe has struggled with his shot this season, hitting 32 percent from the floor. But when the Terriers needed him, he was there.

“I kept with it,’’ said Lowe, whose 1,418 points are sixth-most in school history. “If you’re a shooter, you have to keep shooting. I’ve put a lot of shots up in my day.’’

BU took a 61-54 lead in overtime before a 10-2 run fueled by Janning gave the Huskies the edge.

The Terriers took the lead back when sophomore forward Jake O’Brien created enough space to drop in a hook from the baseline. Northeastern ran a clear-out on the right side for Janning, who had a lane but shot the ball off the side of the basket.

“I buried myself a little too deep under the basket,’’ he said. “Down the stretch you’re not going to get that call a lot of times on the road. I could have made a better play. But that’s what happens.’’

Lowe grabbed the rebound and fed John Holland for a breakaway dunk with nine seconds left that sealed the win.

O’Brien had 18 points, all but 2 after the first half. Holland added 15 off the bench, giving him 1,005 for his career. He also had seven rebounds.

It was the fourth game in six days for BU. The Terriers beat Indiana in a tournament in Puerto Rico over the weekend but lost to Kansas State and Georgia Tech.

“We’re a lot better team now with that experience,’’ O’Brien said. “We played some big programs there.’’

Once bitter rivals in the North Atlantic Conference, BU (2-4) and Northeastern (1-2) play in different leagues and face each other only once a season. Based on the ferocity of yesterday’s game, that’s too bad.

“It’s a big one,’’ said Janning, who led the Huskies with 18 points. “We play against these guys all summer. Off the court, we get along, but on the court it’s still a big rival.

“To us, this is one that we wanted. It hurts to lose here.’’

Until the overtime, the game was one of vast momentum swings. BU scored the first 13 points of the second half to take an 11-point lead, then went 10 minutes without a basket as the Huskies took the lead back.

“There was a lot of intense defense and effort on the backboard. I know at least for our team we had sloppy moments,’’ NU coach Bill Coen said. “I was proud of our effort and disappointed in our execution.

“The difference in the game was that BU made plays when they needed to. Corey Lowe stepped up and made a couple of huge shots.’’

Peter Abraham can be reached at pabraham@globe.com