How does our body respond when adrenaline is secreted into the blood

Q. No. 3: How does our body respond when adrenaline is secreted into the blood?

Ans: When someone is in danger or in emergency then adrenal gland secrete adrenaline hormone. It is secreted directly into the blood and is transported to different parts of the body. It speeds up the heartbeat and hence supplies more oxygen to the muscles. This results in increasing breathing rate and blood pressure which enable them to fight with such urgent situation.