Pituitary hormones are not secreted at a steady rate.  GH is secreted mainly _____________, while PRL is secreted mainly ________________.

The zona reticularis of the adrenal cortex produces _____________.

How does PTH increase blood Ca2+ levels?

Epinephrine and norepinephrine are produced in the _________________.

The primary stimulus for the release of insulin is  _______________.

Increasing the uptake of iodide by the thyroid gland and increasing the growth of the thyroid gland are two functions of the __________________________.

An infant suckling at a mother’s breast will stimulate the mother’s hypothalamus to release ____________ which then stimulates __________________.

In order to synthesize thyroid hormones, which materials must be available?

The zona fasciculata of the adrenal cortex produces _______________.  

The interstitial cells of Leydig produce ________________________.