Final answer:
Epinephrine, also known as adrenaline, increases blood glucose levels by stimulating the liver to convert glycogen into glucose. It also has various other effects on the body.
Step-by-step explanation:
Epinephrine, also known as adrenaline, is a hormone released in response to danger or stress. It activates a signaling pathway that triggers various physiological responses, including the increase of blood glucose levels. Specifically, it stimulates the liver to convert glycogen into glucose, which is then released into the blood.
In addition to increasing blood glucose levels, epinephrine also has other effects on the body. It increases the heart rate, pulse, and blood pressure, preparing the body for fight-or-flight response. It dilates the bronchi of the lungs to increase air volume and oxygenation, while constricting blood vessels in less essential organs. It also causes pupil dilation and loss of peripheral vision.