The ossicles are classically supposed to mechanically convert the vibrations of the eardrum, into amplified pressure waves in the fluid of the cochlea (or inner ear) with a lever arm factor of 1.3.
Addiction researchers have consistently reported that marijuana is far less addictive than alcohol based on a number of factors. In particular, alcohol use can result in significant and potentially fatal physical withdrawal, whereas marijuana has not been found to produce any symptoms of physical withdrawal.or example, one recent study found that teens who used marijuana as well as alcohol suffered significantly less damage to the white matter in their brains. Of course, what is beyond question is that alcohol damages brain cells. 5. Alcohol use is linked to cancer.
However, many systems in the brain are interrelated. It's not clear if alcohol directly acts on all those receptors or if they're a downstream result of its action elsewhere. The smoking gun would be to isolate a receptor and show that alcohol affects it. If alcohol is a depressant, it should facilitate GABA receptors. When GABA receptors were first isolated, they did respond to alcohol, but not until alcohol concentrations reached .33 mL/L. The legal limit for driving is .08 mL/L.