Q.________ is the largest endocrine gland in the body.

The thyroid gland, a bilobed structure in the neck, is the largest endocrine gland in the human body.

Endocrine glands are ductless glands that secrete hormones directly into the bloodstream. Among all the endocrine glands in the human body, the thyroid gland is the largest, weighing roughly 15-20 g in an adult. It lies in the neck, just below the larynx, with two lobes connected by a narrow isthmus lying across the trachea. It secretes the iodine-containing hormones thyroxine (T4) and triiodothyronine (T3), which regulate the body's basal metabolic rate, growth, and development, along with calcitonin, which helps regulate blood calcium. By comparison, the pineal gland is a tiny structure in the brain, the pituitary (though called the 'master glan …