ROLE OF ANTI-TG AND ANTI- TPO IN HYPO-AND HYPERTHYROIDISM

Abstract

Thyroid Gland, endocrine gland found in almost all vertebrate animals and so called because it is located in front of and on each side of the thyroid cartilage of the larynx Like man, thyroid is also present in lower animals, where it has well defined role in regulating metabolic processes. Although present in all vertebrates its shape and position varies in different vertebrate groups. In lower vertebrates there is no compact, encapsulated thyroid gland but the gland is in the form of follicles. In cyclostomes such as lamprey the thyroid follicles are spread along the ventral aorta and frequently found near the branchial arches of the gills. In teleosteans, thyroid follicles are present from pharyngeal region to the distal region of the body, and again, no compact gland but only the follicles are present