How does our body respond when adrenaline is secreted into theblood?
Adrenalin is a hormone secreted by the adrenal glands in case ofany danger or emergency or any kinds of stress. It is secreteddirectly into the blood and is transported to different parts of thebody.
When secreted in large amounts, it speeds up the heartbeat andhence supplies more oxygen to the muscles. The breathing rate alsoincreases due to contractions of diaphragm and rib muscles. It alsoincreases the blood pressure. All these responses enable the body todeal with any stress or emergency.