Thyroid-Stimulating Hormone (TSH). Guide. A thyroid-stimulating hormone (TSH) blood test is used to check for thyroid gland problems. TSH is produced when the hypothalamus releases a substance called thyrotropin-releasing hormone (TRH). TRH then triggers the pituitary gland to release TSH.
A Raven is black but depending on which way the light hits it they change to other colors like bluish, dark red, or greenish. There are white Ravens but are not albino.
Purple and Black are derived from the natural colors of a Raven (bird). The Gold and White colors are derived fâ¦rom the Official Seal of the State of Maryland. Normally, home game uniforms are Purple Jerseys over White pants; however, on special occasions, the Ravens will wear Purple Jerseys over Black pants for a more intimidating look.