Characterize the language used to describe nurse ratched at the end of chapter 9. How does this description change the tone of the chapter?

This establishes the nurse as totally in control of herself and the ward. Although she has lost a small battle she is winning the war. There is a sense of fatalism in the chapter now.

"Her face is still calm, as though she had a cast made and painted to just the look she wants. Confident, patient, and unruffled. No more little jerk, just that terrible cold face, a calm smile stamped out of red plastic; a clean, smooth forehead, not a line in it to show weakness or worry..."