@bachophile
Yeah, renal physiology is way, way beyond weird. All those gradients...
I loved, and understood, neuroanatomy. I've forgotten almost all of it now, though I still have the vocabulary.
Eyes? No way, no how. As an aside, giving anesthesia was one of my least favorite things. I actually saw a seasoned (20 years) OR nurse puke as the specimen was handed off.
Antibiotics and immunology are my black holes as well.