Here's a strange question for you. What do you do when you realize that your professor is giving wrong answers in class?

Last quarter I had a 300-level anatomy class. This quarter I have a 100-level physiology class. This is the first time this professor has taught at Northwestern -- usually she teaches at a community college.

Last week she mis-identified a bone on her own lecture slide as a humerus when it was very clearly a femur. She sort of hemmed and hawed over it for a couple of seconds and then said humerus. So it wasn't just an oral typo.

Last night she spelled the muscle sternocleidomastoid wrong on her lecture slide, and then she mispronounced it as well. But the real kicker was that she had it up there as an example of how muscles are sometimes named based on their points of insertion. She said this muscle is named for its three insertion points: the sternum, the clavicle [both true] and... "mastication, which is chewing, which means it goes into your neck." Ummm... no. It's attached to the mastoid process, which is a piece of the temporal bone of the skull that sticks down behind your ear.

I realize she may need to simplify some explanations because it's a 100-level class, but simplify does not mean the same thing as "tell students the wrong answer." When a student asked her what the difference was between "extends the thigh" and "extends the leg" when we were talking about different muscle functions, she didn't know the answer. Our anatomy professor beat us over the head with learning to call the upper part of the lower limb the "thigh" and the lower part of the lower limb the "leg." She told us specifically not to call the whole lower limb the "leg" because that was anatomically incorrect. So why did my physiology professor not know that?

I don't know what to do here. I paid full Northwestern tuition for this class, and this is the first time at Northwestern that I felt like I was getting a crappy education for my money. All my other Northwestern professors have been stellar.

Should I go to the dean? Should I ask my advisor what I should do? I've never been in this situation before and I don't know how to approach this.