The primary function of thyroid gland includes control of cellular metabolic activity of the body.
Thyroid is a small gland located below the Adam's apple in the neck. Its functioning is mainly guided by the secretion of two hormones namely thyroxine (T-4) and triiodothyronine (T-3). Over secretion or under secretion of these hormones causes hyperthyroidism or hypothyroidism. It is an endocrine gland which controls metabolism of the body such as controlling heart rate, brain functions and growth, bone maintenance etc. Thyroid problems can cause increased weight, weakness, loss of breath, hair loss and mood swings in the body. It is most commonly witnessed in females due to their improper and untimely food habits and low physical exercises.
Learn more about thyroid at:
brainly.com/question/2469666