1. On Beyond the Pituitary
Thyroid, parathyroid, adrenal, et. al.

2. Thyroid Gland
Two large lobes on the front of the trachea
Secretory cells called follicles release the hormones
Thyroxine or tetraiodothyronine (T4) and triiodothyronine (T3): have same actions with T3being five times more potent
Regulate metabolism of carbs, lipids, and proteins
Increase the rate at which cells release energy from carbohydrates
Increase the rate of protein synthesis
Stimulate the breakdown of lipids for use
Require iodine to synthesize hormones
Controlled by TSH from anterior pituitary
Calcitonin: lowers blood calcium and phosphate ion concentrations by inhibiting release from bones and excretion from kidneys
Controlled by blood calcium levels