6.1 Hemi Valvetrain here.

11 (Cam) rotates in block and nudges 16 (Roller), pushing up 19 (Pushrod)

19 pushe lifters on 2 (Rocker shaft), the other side of 2 pushes 4-10 (Valve)

18? Apparently it’s called an “aligning yoke.” No clue what it does

1, 3, 12-14, 17 are immobile parts