Which one of the following is the hormone of adrenal medulla?
Prolactin
$ACTH$
Corticosterone
Epinephrine
If $‘X’$ is a hormone which controls the carbohydrate metabolism in the body and $‘Y’$ is a hormone which controls the secretion of $‘X’$, then $'X’$ and $‘Y’$ are
Identify $A$ to $E$ in the following figure and choose the correct option
When the normal heart of a man is injected with physiological concentration of adrenaline it shows
A patient who excretes large quantity of sodium in urine has