Sandra Oh

Over the past 10 seasons of Grey's Anatomy, Cristina Yang (Sandra Oh) has been a fierce powerhouse of a doctor who broke new ground in medicine all while balancing what can only be described as a complicated personal life. With Oh leaving the series in the upcoming season finale, TVGuide.com gathered her best moments -- ranging from joyful and irate to heartbreaking and hilarious -- over the years. In no particular order (because how could we choose a favorite moment?!), this is our love letter to Cristina Yang:  

1. Cristina and Meredith become each other's person:

2. Cristina suffers an ectopic pregnancy with Burke's baby:

3. Cristina begrudgingly bonds with the Fab Five:

4. Cristina dances it out — and gets in trouble with Burke:

5. Cristina and Owen go to the vent for the first time:

6. Cristina sings "Like a Virgin" during a procedure:

7. Cristina tells Meredith she's getting married:

8. Cristina saves Derek's life:

9. Cristina and Derek go fishing:

10. Cristina goes off on Meredith — and gets an icicle in her gut:

11. Cristina has a meltdown when Burke leaves:

12. Cristina offers Owen up to Teddy:

13. Cristina loses her eyebrows:

14. Cristina cuts Callie's hair:

15. Cristina and Meredith make up:

16. Cristina opens up about her deceased father:

17. Cristina becomes a bartender:

18. Cristina and Meredith go jogging:

19. Cristina is in shock after the plane crash:

20. Cristina discovers that Henry is her dead patient:

21. Cristina dances — again — but this time with the help of tequila:

22. Cristina and Owen get in their worst fight:

23. Cristina details what happened in the woods after the plane crash:

24. Cristina operates in the dark:

25. Cristina drinks during the softball game:

26. Cristina gets choked by Owen:

27. Cristina suffers from PTSD after the hospital shooting:

28. Cristina will stop at nothing to be a doctor:

29. Cristina and Meredith end up as old spinsters:

30. Cristina and Owen get married: 

What are you favorite moments? Did we miss any? Share them in the comments below!

Grey's Anatomy airs Thursdays at 8/7c on ABC.