44. Name the structures:

31. Name the chamber:

40. Name this structure:

16. Papillary muscles:

21. Isovolumetric contraction (in reference, of course, to the left side of the heart) is:

23. Severe hemorrhage (assuming a normal heart) would directly result in:

37. Name this valve:

48. What are the ? marks designating?

Select the term that is spelled correctly: Instrument to visually examine the tube leading from the uterus:

Select the term that is spelled correctly: Reproductive organs: