Now, these two molecules are also used as neurotransmitters by the nervous system. But the major difference between the neurotransmitter and a hormone is the hormone actually creates a much longer lasting effect than our neurotransmitters. So although the nervous system also uses these two molecules, it uses them as neurotransmitters. And that means it's a much shorter type of effect than our endocrine system that uses them to create a much longer lasting effect. Now let's move on to our outer portion known as the cortex. So the adrenal cortex of our adrenal gland is responsible for secreting a group of hormones known as our corticosteroids.