Cretinism,mental retardation,low intelligence quotient,abnormal skin,deaf-mutism,etc.,are the results of:

Iodine is stored in which of the following glands in the body?

$I.$ Hypothyroidism causes irregularity of the menstrual cycle.
$II.$ Hyperthyroidism adversely affects body physiology.
$III.$ Hypothyroidism causes cretinism.
$IV.$ Hypothyroidism causes goitre.
Which of the above statements are correct?

Give information regarding the location of the thyroid gland and its hormones.

The thyroid gland is composed of $2$ lobes which are located on either side of the $trachea$.

Write a short note on the disorders/diseases of the thyroid gland.