The part of the brain that sends out the signal to the adrenal cortex to release the hormone is the hypothalamus of the brain.
The adrenaline is a hormone that is secreted by the adrenal cortex and is known to be functional in a time when the body is in distress. It is sometimes called the fight and the flight hormone because of the role that it plays in the times when the body is faced with danger.
Now, the part of the brain that sends out the signal to the adrenal cortex to release the hormone is the hypothalamus of the brain. Another name for the hormone is epinephrine.
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