Symptoms like pot-bellied,pigeon-like chest,protruding tongue,and mental retardation are characteristic of:

The primary function of the thyroid gland is to regulate..........

Consider the following statements with respect to Calcitonin:
$I$. It is non-iodised.
$II$. It is secreted by parafollicular cells.
$III$. It regulates the calcium level in blood.
$IV$. It is also called as $TCT$ (Thyrocalcitonin).
$V$. It is a hyperglycemic agent.
Select the option containing correct statements from the above given statements.

............ support the process of red blood cells formation.

Which one of the following hormones contains iodine?

$A$ pregnant woman delivers a child who suffers from stunted growth,mental retardation,low intelligence quotient $(IQ)$,and abnormal skin. This condition is likely due to: