It pours more adrenalin into your bloodstream. When we take off running - say if a very big, very vicious dog is chasing us - we tend to be able to run like an Olympian. That is the "shot of adrenalin".
medulla.
You have the cortex and medulla in the adrenal gland. You have zona glomerulosa, zona fasciculata and zona reticularis in the cortex. It mainly secrets the hormones cortisol and hydrocortisones along with little sex hormones.
epinephrine and norepinephrine.
The pineal gland releases melatonin, which regulates sleep/wake cycles. The adrenal glands release epinephrine, which is the fight or flight hormone.
The adrenal gland secretes glucocorticoids. There are two adrenal glands in the human body that sit on top of each kidney.
Outer zona glomerulosa secrets the hormone called as aldosterone. Middle zona fasciculata secretes the hormone called as cortisol and hydrocortisone. Inner zona reticulosa secretes the androgens.
The adrenal gland secretes epinephrine--also known as adrenalin.
Endocrine system
Endocrine glands secrete hormones.Secretions are released into blood.
The chemical product of an endocrine gland is called a hormone. These cause changes in the body. Different glands will produce different hormones for different purposes. For example, the adrenal glands will produce adrenaline (fight or flight hormone), the pituitary gland will produce testosterone and oestrogen (puberty hormones) and the hypothalamus in the brain will produce many hormones that regulate bodily functions such as breathing, heart-beat, body temperature etc.
Unlocking the secrets of the universe's workings would be my response
the pituitary glands
the pituitary glands