Be careful not to recite out loud some time-tested (and time-worn) bawdy medical mnemonics, such as the one for the cranial nerves: Oh, Oh, Oh, To Touch And Feel A Girl’s Vagina And Hips.
Another for remembering the Argyll Robertson pupil or “Prostitute’s Pupil” due to syphilis: they don’t react (to light) but are accommodating.
This mind palace thing appeared in the Cumberbatch “Sherlock” series. I do believe that Conan Doyle didn’t use this term in his novels and stories about his Victorian “Mary Sue” character.
In a “Study in Scarlet,” Holmes tells Watson that he is careful what he enters into his memory, feeling that there is a finite capacity to protect. Watson then mocks him for nothing little or nothing about the solar system.