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.
Cortisol & Adrenal Function. Cortisol is a life sustaining adrenal hormone essential to the maintenance of homeostasis. Called âthe stress hormone,â cortisol influences, regulates or modulates many of the changes that occur in the body in response to stress including, but not limited to: 1  Blood sugar (glucose) levels.2  Fat, protein and carbohydrate metabolism to maintain blood glucose (gluconeogenesis).alled âthe stress hormone,â cortisol influences, regulates or modulates many of the changes that occur in the body in response to stress including, but not limited to: 1  Blood sugar (glucose) levels. 2  Fat, protein and carbohydrate metabolism to maintain blood glucose (gluconeogenesis).