"It was just poor execution by myself, and poor fundamentals, and that's the cause of it." Brady said during his weekly appearance on WEEI's "Dennis & Callahan" program. "I give Seattle a lot of [credit for] defense and I credit the way they play."
Brady completed 5 of 13 passes in the fourth quarter.
Brady wasn't the only one hit hard by the Seahawks. Receiver Wes Welker absorbed a big hit from Seahawks safety Brandon Browner, but despite that hit and many others, Welker produced his fourth-straight 100-yard receiving game.
"He got drilled, he got drilled," Brady said. "He's so tough. There's nobody as tough as Wes. His mental toughness, this physical toughness. He runs over the middle fearlessly and makes play after play.
"He made a ton of plays the other day and was open on a ton more plays that I didn't throw to him. He finds the hole and knows how to get open. He's just a great player for us."
At the end of the first half and again in the fourth quarter, Brady was flagged for intentional grounding penalties, the first of which resulted in a 10-second run-off and the loss of a field goal attempt.
"I just kind of stepped up into the pocket and threw the ball over the middle," Brady said. "Trying to throw the ball away, there just wasn't anyone very close to where I was throwing the ball and they made the right call. I've got to do a better job making a better decision with the ball."
After the game, Brady was the target of taunts from Seahawks cornerback Richard Sherman.
"Everyone is entitled to their opinion," said Brady. "We just try to show up and do our job and show our opponents respect and try to go out and earn their respect by playing well. "
Now Brady and the Patriots turn their attention to Sunday's game vs. the Jets at Gillette Stadium, Both teams are 3-3, but the Jets will be without star cornerback Darrelle Revis, who is out for the season with an ACL injury.
"He's a phenomenal player," said Brady. "As good a corner as there is in the league and as good a corner I've faced, but their team has always been built around their defense and not just one player. He's a great player and I don't want to discount him, but they've got got other great players, too.
"Antonio Cromartie is a great player and they have some guys on the line that can rush, and a solid group of linebackers. It's going to be a good challenge for us; it feels like we're playing good defenses every week, and the Jets are no different."