The correct option is D Adrenaline
Feeling
tremors of an earthquake, a scared resident begins to climb down the stairs
rapidly from the seventh floor. The hormone in play is adrenaline. It is
released from adrenal medulla which is the internal or inner part of the
adrenal gland. Adrenaline is also called epinephrine. It is released during
stress of any kind or emergency situations and is therefore called as emergency
hormone and adrenal gland is called emergency gland. It also prepare the body
during the fright, fight hence also called as 3F or fight, fight hormones.
Adrenaline have effects on different organs of the body. It increases the heart
beat, the strength of heart contraction and the rate of respiration. It increases
the sweating, piloereaction (raising of hair), alertness and pupilary dilation.
It also stimulates the breakdown of glycogen resulting in an increased
concentration of glucose in blood. It also stimulates the breakdown of lipids
and proteins.