GENERAL HISTOLOGY

Detailed explanation-1: -It consists of two lobes, one on each side of the trachea, just below the larynx or voice box. The two lobes are connected by a narrow band of tissue called the isthmus. Internally, the gland consists of follicles, which produce thyroxine and triiodothyronine hormones. These hormones contain iodine.

Detailed explanation-2: -The thyroid gland is shaped like a butterfly with two wings or lobes on either side of the windpipe that are joined together by a bridge of tissue, called the isthmus, which crosses over the front of the windpipe.

Detailed explanation-3: -The thyroid has two sides called lobes that lie on either side of your windpipe, and is usually connected by a strip of thyroid tissue known as an isthmus. Some people do not have an isthmus, and instead have two separate thyroid lobes.

Detailed explanation-4: -Sometimes a fourth thyroid vein might be present, called the vein of Kocher. The nerve supply is mainly from middle cervical ganglion but also partly from superior and inferior cervical ganglions. Two capsules completely cover the thyroid gland. The true capsule is made up of fibro-elastic connective tissue.