follicular cells

Thyroid gland: Histology and Hormones

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An endocrine gland situated at the root of the neck, one on either side of the trachea. Bi-lobed, connected to each other by an isthmus. Weight is about 20-40gm, 4 to 4.8 x 1 to 1.8 x 0.8 to 1.6 cm in size, in adults. Larger in females as compared to males. Changes occur in … Read more

Thyroid gland

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Introduction It is situated in the neck in front of the larynx and trachea at the level of 5th, 6th, and 7th cervical and 1st thoracic vertebrae. It is highly vascular ‘H’ shaped brownish red gland. It weighs about 25 grams which is surrounded by fibrous capsule. It consists of 2 lobes, one on either … Read more