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.
In the Harry Potter novels, Ravenclaw is one of the four school houses that students can be placed in when they arrive at Hogwarts.Named for Rowena Ravenclaw, one of the original medieval founders of the school, its colors are blue and bronze and its heraldic device is an eagle.The defining traits of members of Ravenclaw House are intelligence, wit and wisdom.his page is about the meaning, origin and characteristic of the symbol, emblem, seal, sign, logo or flag: Ravenclaw House. The emblem of Ravenclaw House of Hogwarts School of Witchcraft and Wizardry.