Cushing's syndrome is the result of the excessive production of corticosteroids by the adrenal glands. An overproduction of corticotropin (ACTH) - the hormone that controls the adrenal gland - by the pituitary gland, which stimulates the adrenal glands to produce corticosteroids, may be one cause. It is called Cushing's disease and the result of ACTH-secreting pituitary adenoma. Alt.
deficiency. a lack or shortage; a condition characterized by the presence of less than the normal or necessary supply or competence. color vision deficiency see color vision deficiency.
The word part that completes the medical term meaning deficiency of blood (flow), ______/emia, is: isch; Ischemia is a blood condition (-emia) characterized by deficient flow of oxygenated blood to the heart. It is caused by arterial blockage. The word root isch/ means deficiency, blockage.