thyroid gland

UBERON:0002046 · glandula thyroidea, thyroid

Endocrine gland secreting thyroxine and triiodothyronine, setting basal metabolic rate; also secretes calcitonin.

Where it sits

• part of endocrine system

What it does, and what normal looks like

• Setting your metabolic pace

Markers that report on it

• Thyrotropin regulated by main
  Thyroid hormone levels set how much TSH the pituitary makes, so TSH is the first test used to check the thyroid.
• Thyroxine, free secreted by main
  T4 is the main hormone made by the thyroid gland.
• Triiodothyronine, free secreted by main
  The thyroid gland makes T3 and T4, and a T3 test is used to check whether it is making too much hormone.