Primary syphilis can be diagnosed by seeing bacterial filled chancre in the genital area. Not all patients exhibit this sign.
Answer:
As the stapes moves, it pushes a structure called the oval window in and out. ... As the stapes rocks back and forth against the oval window, it transmits pressure waves of sound through the fluid of the cochlea, sending the organ of Corti in the cochlear duct into motion
Explanation:
I believe its something called psychoactive drug,
But i'm not exactly sure.
I think it would be called "flexibility"