Peculiarities of the thyroid gland structure (With special reference to the presence of ganglion zells)

Abstract

We have perforined a study on the coirrparati\,e structure of the thyroid gland in several species OS mainmals (i-at, cat, dog, lamb, pig, cow, and rnan). We hnve described the structural differences among thein, paying special attention to the distribution of conncctive tissue. the intrafollicular and parafollicular cells. In the thyroid gland, we can confirm the existente of n e n e cclls. either isolated or forining vegetative cai-iglions in the iiitei-follicular spaces. in soine of the specie stiidied. especially in the rat and the dog.