Definition Essay on Adrenalin

Definition Essay on Adrenalin

Adrenaline is a hormone produced by the adrenal gland in the body of many animals. When it is produced in the body it stimulates the heart-rate, dilates blood vessels and air passages, and has a number of more minor effects. There is an increase in heart rate to provide muscles with oxygen and glucose for respiration there. Blood pressure increases too. Blood is sent to motor muscles to enable fight or flight; it is diverted from the digestive system. This can cause nausea, or emptying of the bowels. Blood carrying oxygen and glucose to the ...