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The adrenal medulla is part of the adrenal gland. It is located at the center of the gland, being surrounded by the adrenal cortex. It is the inner most part of the adrenal gland, consisting of cells that secrete epinephrine, norepinephrine, and a small amount of dopamine in response to stimulation by sympathetic preganglionic neurons. BasicThe adrenal medulla consists of irregularly shaped cells grouped around blood vessels. These cells are intimately connected with the sympathetic division of the autonomic nervous system. In fact, these adrenal medullary cells are modified postganglionic neurons, and preganglionic autonomic nerve fibers lead to them directly from the central nervous system. From Wikipedia under the
GNU Free Documentation License  helium.com Fri, 23 Jul 2010 02:24:21 GMT+00:00 Helium This medical condition affects cells of the adrenal medulla which secrete epinephrine and norepinephrine causing their elevated level in the blood. ...  earthtimes.org Tue, 20 Jul 2010 22:07:39 GMT+00:00 Earthtimes Catecholamines, released directly into the heart via the sympathetic nerves and reaching the myocardium via the blood stream from the adrenal medulla have ...  health.detik.com Mon, 05 Jul 2010 10:20:03 GMT+00:00 Detikcom Ketika adrenalin dilepaskan oleh adrenal medulla , darah menjadi lebih mudah mengalir ke otot yang berarti lebih banyak oksigen yang dibawa ke otot sehingga ... From Google News Search: "Adrenal medulla" |
