1. 2 1

2. Colloid containing thyroglobulin / Stored thyroid hormone Follicular cells (nuclei of)

3. 2 (cells) 1 3

4. Area of parafollicular or C cells Thyroid follicles Colloid containing thyroglobulin

5. 1 2

6. Acinar tissue Pancreatic Islet

7. 2 1

8. Islets of Langerhans Acinar Tissue

9. 1 Acinar tissue

10. Enlargement of an Islet of Langerhans Acinar tissue

11. 1 2

12. Medulla 3 regions of the cortex

13. 1 2 3 5 4

14. Cortex Adrenal medulla sinus

15. 3 (cells)2 (whole thing) Endocrine cell inside the seminiferous tubule = 1

16. Interstitial cellsSeminiferous tubules of testis Endocrine cell in the seminiferous tubule = sustentacular /Sertoli

17. Seminiferous Tubules of the Testes 1 2 3

18. Interstitial cells Area of sperm developing Cells with some sustentacular cells lumen

19. 1 2

20. Sustentacular cells among Sperm developing cells Interstitial cells (of Leydig)

21. 1 2

22. Blood vessel surrounded by interstitial cells

23. 2 4 3 1= whole structure

24. antrum Corpus luteum Granulosa / Follicular cells Grafian / tertiary follicle

25. 1 2

26. Fluid filled antrum Granulosa / follicular cells

27. 1 2 3 = Whole structure shown above

28. Fluid filled antrum Granulosa / follicular cells 3 = Grafian / tertiary follicle

29. Large circular structure?

30. Corpus Luteum

31. 1 2 3

32. Pars distalis of anterior pituitary (red, blue and gray) Pars nervosa / Posterior pituitary / Neurohypophysis Infundibulum / Pituitary stalk