21. Identify the chamber labeled A.  (INCLUDE ORGAN NAME) 22. Identify these depressions and convolutions labeled F.

39. Identify the red blood vessel labeled J. 40. Identify the red blood vessel labeled N.

29. Identify the valve labeled I. 30. Identify the chamber labeled J. (INCLUDE ORGAN NAME) 

3. Identify the endocrine organ/tissue labeled C in the image below.   4. Identify the endocrine organ/tissue labeled A in the image below.

1. Identify the organ seen in the field of view. 2. Identify the cells labeled B.

11. Identify the organ in the field of view. 12. Identify the SPECIFIC region of the organ labeled C.

13. Identify this hormone secreting organ labeled A. 14. Identify this hormone secreting organ labeled B.

35. Identify the blood vessel labeled E. 36. Identify the blood vessel labeled D.

1. Identify the organ seen in the field of view. 2. Identify the ENTIRE structure labeled C.

Select all possible donors for an O NEGATIVE receiver.