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contains the islets of Langerhans

adrenal cortex

secretes cortisol, aldosterone, and testosterone

thyroid gland

secretes iodine-containing hormones


secretes releasing hormones

anterior pituitary gland

secretes ACTH, TSH, prolactin, growth hormone, and the gonadotropins

adrenal medulla

part of the fight-or-flight system; secretes catecholamines

posterior pituitary gland

the neurohypophysis; secretes ADH and oxytocin

parathyroid hormone

stimulates osteoclastic activity to increase blood calcium

T3 and T4

regulates metabolic rate


the only hormone that lowers blood glucose.


stimulates the breast to produce milk; also called lactogenic hormone


the hormonal component of the fight-or-flight response


the neurohypophyseal hormone that controls water balance


stimulates the adrenal cortex to secrete steroids

growth hormone

also called somatotropic hormone


the mineralocorticoid that is called the salt-retaining hormone

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