Which gland secretes the hormone responsible for the 'fight-or-flight' response?

$A$ 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?

$A$ steroid hormone which regulates glucose metabolism is

Which of the following hormones is released in excess quantity during excitement?

Identify the statement/s given below that does not correspond to the functions of $Cortisol$:
$(i)$ Maintains cardiovascular system and kidney functions
$(ii)$ Produces anti-inflammatory reactions
$(iii)$ Maintains electrolyte balance,osmosis and blood pressure
$(iv)$ Suppresses immune response
$(v)$ Stimulates $RBC$ production

Deficiency of the adrenal cortex activity leads to