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 is a steroid hormone which regulates a wide range of processes throughout the body including metabolism and the immune response. It also has a very important role in helping the body respond to stress.lternative names for cortisol Hydrocortisone. What is cortisol? Cortisol is a steroid hormone, known as a glucocorticoid, made in the cortex of the adrenal glands and then released into the blood which transports it all round the body.