Answer
The adrenal gland.
Work Step by Step
The cortex of the adrenal gland derives from mesoderm, but the adrenal medulla derives from ectoderm. The hormones secreted by the adrenal cortex are steroid hormones--glucocorticoids (corticosterone, cortisol), and mineralocorticoids (aldosterone). The adrenal medulla produces the catecholamines epinephrine, and norepinephrine.
