What surround the thyroid
Connective tissue capsule
What extends from the capsule into the parenchyma
Trabeculae
What does the parenchyma of the thyroid contain
Follicles lined by simple epithelium of cuboidal or squamous cells
What is the product in the lumen of the thyroid follicles
Colloid
When the thyroid gland is stimulated by TSH what happens
Follicular cells become cuboidal or columnar
What are parafollicular cells
Cells between follicular cells with larger nuclei and are lighter, fuzzier
Parafollciular cells produce calcitonin
In a normal aging thyroid, what might you find
Lymphocyte infiltration