A tumor type of this non-skin organ was classically described by the “rule of 10s.” Harvey, Kirsten, and a proto-oncogene named after a malignancy most often found in this organ comprise the human Ras genes. Greater amplification of the N-myc gene correlates with a worse prognosis for that pediatric tumor in this organ and often corresponds (-5[1])to increased levels of homovanillic acid. MIBG accumulates in cells in this organ that share an affinity for chromium salt staining with similarly named (*) serotonin-secreting “entero” cells in the GI tract. Pheochromocytomas originating from this organ's chromaffin cells can paroxysmally secrete high levels of catecholamines. This organ’s (-5[1])cortex secretes glucocorticoid hormones, including cortisol. For 10 points, name this paired organ whose medulla produces the majority of epinephrine. (10[1]0[1])■END■