9.3 POJA-L3501+2807+3502+3504
Title: Follicle epithelial cells of the thyroid gland (VI)
Description:
(A): Enzyme histochemistry acid phosphatase, pig. (B): Electron microscopy, gerbil. (C): Electron microscopy, dog. (D): Electron microscopy, rat. The epithelial cells show acid phosphatase activity in their apex towards the follicle lumen in (A). Confirmed by (B - D) showing the electron-dense lysosomal structure of varying sizes, supranuclearly. The electron-grey globules (B, 2 and D, 2) represent the colloid vacuoles subsequently formation of phagolysosomes in the process of hydrolysis of thyroglobulin into globulin T3 and T4 (endocrine phase). (1) Follicle lumen with colloid. (2) Colloid vacuoles with degraded thyroglobulin. (3) Lysosomes.
Keywords/Mesh: thyroid gland, acid phosphatase, lysosomes, thyroglobulin, histology, electron microscopy, POJA collection
Title: Follicle epithelial cells of the thyroid gland (VI)
Description:
(A): Enzyme histochemistry acid phosphatase, pig. (B): Electron microscopy, gerbil. (C): Electron microscopy, dog. (D): Electron microscopy, rat. The epithelial cells show acid phosphatase activity in their apex towards the follicle lumen in (A). Confirmed by (B - D) showing the electron-dense lysosomal structure of varying sizes, supranuclearly. The electron-grey globules (B, 2 and D, 2) represent the colloid vacuoles subsequently formation of phagolysosomes in the process of hydrolysis of thyroglobulin into globulin T3 and T4 (endocrine phase). (1) Follicle lumen with colloid. (2) Colloid vacuoles with degraded thyroglobulin. (3) Lysosomes.
Keywords/Mesh: thyroid gland, acid phosphatase, lysosomes, thyroglobulin, histology, electron microscopy, POJA collection