31. What part of the conduction system would be found in the region of the heart labeled D in the image above. [31] 32. Identify the blood vessel labeled F in the image above. [32]

3. Identify the endocrine organ/tissue labeled C in the image above. [3] 4. Identify the endocrine organ/tissue labeled A in the image above. [4]

Matthew is an athlete, who has a resting heart rate of 50 beats/minute. Matthew’s resting stroke volume is 100 ml/beat. Peter’s, who prefers the couch life, has a resting heart rate is 80 beats/minute.   Peter has a resting stroke volume of 62.5 ml/beat. Who has the greater cardiac output Matthew or Peter?

A feature of cardiac muscle that joins adjacent cells together is:

Which of the below is NOT true for Parathyroid hormone (PTH)?

45. [45] Identify the organ in the image above. 46. [46] Identify the structure at the tip of the pointer.    

. 13. [13] Identify this connective tissue covering. 14. [14] Identify this opening.

19. [19] Identify this cavity within the bone. 20. [20] Identify this structure.  

5. [11] In the above image, identify the endocrine gland at the tip of the arrow. 6.  [12] In the above image, identify the organ containing endocrine tissue at the tip of the arrow.

15. [B] Identify the vessel labeled B. 16. [C] Identify the vessel labeled C.