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hormone regulation (adrenal medulla (the preganglionic neurons are in the…
hormone regulation
adrenal medulla
the preganglionic neurons are in the thoracic spinal segments and the axons travel in the greater thoracic splanchinc nerve to the adrenal medulla
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the chromaffin cells in the adrenal medulla release catecholamine (epi 80%, NE 20%)
hypothalamus (PAM)
ADH (the hypothalamus has osmolarity receptors that's why it makes ADH) and oxytocin that are made in the hypothalamus are secreted by the posterior pituitary
stimulates the release of NE and epinephrine from the adrenal medulla via preganglionic sympathetic fibers
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portal vessels in between hypothalamus and pituitary gland: how the hypothalamus communicates with the pituitary gland, ensures the hormones reach the intended target before reaching the general circulation (portal means two capillary beds)