Simultaneous synaptic activity from which types of neurons can cause LTD in Purkinje cells?

Once slow motor units expend all their energy, fast-fatigue-resistant motor units take over. 

The dorsal striatum receives… (select all that apply)

Which of the following correctly pairs a canal (horizontal, posterior, or superior) with a motion that will elicit activity? (select all that apply)

Which of the following could be administered intravenously (i.e. into a vein) in the body to induce an animal model of Parkinson’s disease? (select all that apply)

Which brain regions receives the most proprioceptive signals?

Which of the following types of nerve fibers will have the FASTEST conduction velocity? 

Which of the following has the HIGHEST threshold?

If D1 MSNs are activated… (select all that apply)

In hair cells, movement of K+ into the stereocillia is driven primarily by the_______, and movement of K+ out of the cell body is driven primarily by the___________.