PHOTO ATLAS: Study of the thyroid gland under the microscope. Note the spherical follicles, which contain pink thyroglobulin (primarily thyroxine attached to carrier protein). Cuboidal cells form the walls of the follicles and secrete thyroxine. Cells located between the follicles secrete calcitonin. Sketch the thyroid tissue and indicate which cells secrete thyroxine and calcitonin.
Added by Anna S.
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