Cortisol is produced by

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.

Which gland is known as the $3F$ gland?

Study the given flow chart and identify $A, B, C, D$ and $E$.

Epinephrine and norepinephrine are both collectively known as:

What is increased by norepinephrine?