List of North American cities by population. This list of North American cities by population ranks cities based on the latest available official government census figures, estimates or projections for mid-year populations (unless otherwise noted) living within city limits. All cities with a population exceeding 500,000 are included. 1  1 List.  2 See also.
The pituitary gland sends signals to other glands, for example the thyroid gland, to produce hormones, such as thyroid hormone. The hormones produced by the pituitary gland and other glands have a significant impact on bodily functions, such as growth, reproduction, blood pressure, and metabolism.umors can cause damage to the pituitary gland or hypothalamus and can therefore result in a loss of function. Damage to the pituitary gland can also be caused by radiation, surgery, infections such as meningitis, or various other conditions. In some cases, the cause is unknown.
Pituitary Cushing's is a condition in which the pituitary gland (an organ of the endocrine system) secretes excess adrenocorticotropic hormone (ACTH). Cushing's disease is a form of Cushing's syndrome, in which excess cortisol (a stress hormone) is secreted. In the case of Cushing's disease, the problem is caused by a tumor or hyperplasia (excess growth) of the pituitary gland. The pituitary gland is located in the base of the skull and regulates the activities of many glands and body processes. When ACTH is secreted by the pituitary gland, the adrenal glands release cortisol. In Cushing's disease, there is too much ACTH, which leads to an excess release of cortisol.