Find the odd one out with respect to the gland and its secretions.

Calcium plays a very important role in the formation of bones. Write about the role of endocrine glands and hormones responsible for maintaining calcium homeostasis.

Which of the following statements is correct in relation to the endocrine system?

Which of the following pairs is correctly matched regarding the hormone and its associated disorder?

Which of the following statements are true or false?
$I$. Calcitonin regulates the metabolism of calcium.
$II$. Oxytocin stimulates contraction of uterine muscles during birth.
$III$. Grave's disease is caused by the malfunctioning of the adrenal gland.
$IV$. $ADH$ stimulates the absorption of water and increases urine production.

Diagrammatically indicate the location of the various endocrine glands in our body.