Corticotrophin releasing factor (CRF) or corticotrophin releasing hormone (CRH)
A hormone secreted by the hypothalamus and the regulator of the HPA axis.
When released, it causes acetylcholine and glucocorticoid to be released.
The acethylcholin will then bind to the adrenal cortex, releasing cortisol in humans or corticosterones in other mammals.
Related
Acetylcholine
Adrenal cortex
Cortisol