Norwood will stay with Carlisle another month.
He said: It's great for me to be able to stay because it's been a really good experience.
"Hopefully I'll keep doing my bit to keep the team at the top end of the table.
"I've really enjoyed it here and there have been some great games.
"Making my debut against Brighton was a real high point, and the lads have been fantastic with me from the moment I arrived."