Mary is about to face an interview. But during the first five minutes before the interview she experiences sweating, increased rate of heart beat, respiration etc. Which hormone is responsible for her restlessness?

A boy witnessed an accident on his way to school. Following changes occurred in him. (Increased heart beat, profuse sweating, pupils dilated, shivering, pale face, increased respiration) a) Name the hormone responsible for these changes? b) Name the gland which secretes this hormone?

Suppose you dramatically escaped from a motor accident. Your heart beat and rate of respiration was increased at that moment. a) Name the hormone involved in this change. b) Which part of nervous system control these action? c) Enlist other physiological changes that you may feel at that time.