Which auditory ossicle directly vibrates the oval window to…

Which auditory ossicle directly vibrates the oval window to create fluid waves in the cochlea? Hint 1: it is also the smallest bone in the human body. Hint 2: it can be stabilized by the smallest skeletal muscles in the body. Hint 3: it is most proximate to the inner ear (labyrinth). Hint 4: that’s enough hints.

True or False: Amyotrophic lateral sclerosis, AKA Lou Gehrig…

True or False: Amyotrophic lateral sclerosis, AKA Lou Gehrig’s disease or motor neuron disease, is similar to Parkinson’s disease in that they both are a result of the autoimmune loss of dopaminergic neurons in the midbrain substantia nigra, thereby affecting the basal nuclei. 

Electro-neurophysiology question part 2 of 4: Interestingly,…

Electro-neurophysiology question part 2 of 4: Interestingly, it is indeed still possible to produce an action potential in neurons of a patient taking potassium channel blocker medications.. In this case, the peak voltage at which the sodium channels become inactivated would be