When a normal heart is injected with physiological concentration of adrenalin, it shows

The hormone responsible for the sodium metabolism is

If adrenal cortex function is impaired, it results in decreased concentration of one of the following in the blood

$I.$ The adrenal cortex secretes many hormones called corticoids     $II.$ Corticoids involved in carbohydrate metabolism are called glucocorticoids      $III.$ Cortisol is main glucocorticoids   $IV.$ Aldosterone is the main mineralocorticoids

Select the correct combination from the given options

The gland which acts to resist stress

The adrenal medulla secretes two hormones called adrenaline or ...$A$... and noradrenaline or ...$B$.... These are commonly called as ...$C$... Adrenaline and noradrenaline are rapidly secreted in response to stress of any kind and during ...$D$.. situations and are called emergency hormones or hormones of fight or flight.

Identify $A \;to \;D$ and choose the correct option