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

Adrenalin hormone is secreted in small amount all the time but in large amount, when a person is frightened. As a result, the heart beats faster to supply more oxygen to our muscles.

The blood supply to the digestive system and skin is reduced and more blood is diverted to our muscles.

The breathing rate also increases. It also allows more glucose to go into the blood to give us a lot of energy quickly to fight or run away from the frightening situation. Therefore, it is often called emergency hormone.

it restores trees to areas where they once grew.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.