Cech does not think it is just the back four that should accept responsibility and feels everyone in the team must work hard to bounce back in the next match.
"I am extremely disappointed about the result," the Czech Republic international said on his own personal website.
"But there is nothing we can do about it now - the only response is to win the following games."
Asked what the main reason was for the defeat, Cech added: "That we made lots of errors in defending. We gave Arsenal too many chances to punish us and they took them.
"If my memory works well, this is the first time I have conceded five goals in one game. Up till this the maximum had been four.
"It was a result of bad defending of the entire team, outlined by individual errors. We certainly can't blame only the defenders for the goals, we played poorly as a team."