Which of the following organ systems jointly coordinate and integrate all the activities of the body organs?

Which of the following matches is correct?

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.

Which cranial nerve is responsible for the regulation of the heartbeat?

The hypothalamic hormones reach the pituitary gland through$:-$

Match the following hormones with the respective diseases:

$(a)$ Insulin	$(i)$ Addison's disease
$(b)$ Thyroxin	$(ii)$ Diabetes insipidus
$(c)$ Corticoids	$(iii)$ Acromegaly
$(d)$ Growth Hormone	$(iv)$ Goitre
	$(v)$ Diabetes mellitus

Select the correct option.