Which of the two adrenocortical layers, $zona glomerulosa$ and $zona reticularis$, lies outside, enveloping the other?

Which of the following is $NOT$ a function of adrenaline?

$A$ person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro-hormonal control system?

Norepinephrine:
$(i)$ is released by sympathetic fibers
$(ii)$ is released by parasympathetic fibers
$(iii)$ increases the heart rate
$(iv)$ decreases blood pressure.
Which of the above statements are correct?

$A$ : Our body secretes adrenaline in intense cold.
$R$ : Adrenaline raises metabolic rate.

Which hormone is responsible for the dilation of blood vessels,increased oxygen consumption,and glycogenolysis?