Thyroid Gland

 Structure of the thyroid gland:

Thyroid Gland

   Although quite small compared to many organs in the body, the thyroid is one of the larger glands of the endocrine system. It is located on front of the next, just below the Adam’s apple. The thyroid gland has two primary lobes – the right and left. Not surprisingly, the right and left lobes are found on the right and left side of the trachea, respectively.

 
 Connecting the right and left lobes is a small bit if tissue called the isthmus. Together, this creates a shape which vaguely resembles a butterfly. The thyroid gland is covered in a tough fibrous capsule. This is a layer of tissue which completely surrounds the thyroid gland and protects it from the surrounding organs and tissues. The thyroid gland is immediately adjacent to the larynx and trachea. In fact, it wraps around a significant portion of the trachea.
   The thyroid gland reaches his deep into the neck as the esophagus. Because sthe thyroid gland is made of relatively soft tissue, it can often be difficult to determine exactly how high and how low it is in a person’s neck. In a fully grown adult, the thyroid gland weighs approximately 20 to 60 grams. As you can tell, the thyroid gland can vary in size greatly from person to person.

   The thyroid gland receives its blood supply from the superior thyroid artery. The superior thyroid artery is a branch of the external carotid artery. some blood is also supplied by the inferior thyroid artery. This is a branch of the thyrocervical trunk. blood supply to the thyroid artery can be very important, especially to a surgeon who is forced to operate on the organ. Blood draining from the thyroid artery travels either through a superior thyroid vein or the
inferior thyroid vein.
Function Of Thyro