Not doing developmental section (p178-195; but i think we should. 2 tables in that section that are fair game. Otherwise, eth in chapter 7 and appendix is testable. Maintains muscle tone muscle tone (residual muscle tension or tonus) is the continuous and passive partial contraction of the muscles, or the muscle s resistance to passive stretch during resting state.  it helps maintain posture, and it declines during rem sleep. Gate way for expression of sensory-driven & goal-oriented movemt. ganglia stands for group of nuclei that is in pns only. Heavily involved w/ basal ganglia structures (ventral lateral nucleus = vl) => ventral lateral nucleus of thalamus. Special type of inhibitory cells representing approximately 90% of the neurons within the corpus striatum of the basal ganglia. Play a key role in initiating and controlling movements of the body, limbs, and eyes. Can clearly see their dendritic spines coming from from the dendrites of cell.