44. Name this bone, include L. or R. 

33. Name this bone marking/structure. 

49. Name this bone. 

Bonus Question: A. Name this bone marking/structure.   

32. Name this bone marking/structure. 

Bonus Question: D. Name this bone, include L. or R. 

30. Name this bone, include L. or R. 

A 63-year-old male with chronic GERD has been taking omeprazole daily for 3 years. He presents with fatigue and numbness in his feet. Laboratory results reveal macrocytic anemia and low serum vitamin B12 levels. Which of the following best explains the mechanism underlying this adverse effect?  

Bonus Question: E.  Name this bone. 

13. Name this part of this bone.