Yes, "Take the cheese to sickbay!" was B'lanna's line. Most those aren't about the captains themselves.
I have to agree with the one about pulling over to ask for directions.
Another reason to call Janeway the mother of the ship was that she gave people extra chores for punishment. I liked when she threatened Paris when cleaning the plasma filters when he complained about being bored.
I think again, though, that she was a "momma bear." She fiercely protected the ship. I think of it as, "You're not getting to this ship and crew unless you get through me and you're not getting through me."
She is a great character.
Stephanie