A transverse section of the adult spinal cord shows white matter in the periphery, gray matter inside, and a tiny central canal filled with CSF at its center. Surrounding the canal is a single layer of cells, the ependymal layer.
Cortisol is commonly referred to as the stress hormone.. The hormone is secreted by the adrenal glands and released into the bloodstream as a fight or flight response to stress. The highest quantities of cortisol are produced in the early morning hours and then production slowly tapers off throughout the day.
The adrenal gland has a center gland (medulla) that produces adrenaline and an outer gland (the cortex) that produces several hormones, such as cortisol an aldosterone. This page is about cortisol overproduction by the adrenal cortex.Causes of Cushing's Syndrome.t is now known that these symptoms characterize Cushing's syndrome, which is the result of excess production of cortisol by the adrenal glands. Cortisol is a powerful steroid hormone, and excess cortisol has detrimental effects on many cells throughout the body.