Thyroid hormones (T 4 and T 3) are produced by the follicular cells of the thyroid gland and are regulated by TSH made by the thyrotropes of the anterior pituitary gland. The effects of T 4 in vivo are mediated via T 3 (T 4 is converted to T 3 in target tissues). T 3 is 3- to 5- fold more active than T 4.
May is Jewish American Heritage Month The Library of Congress, National Archives and Records Administration, National Endowment for the Humanities, National Gallery of Art, National Park Service and United States Holocaust Memorial Museum join in paying tribute to the generations of Jewish Americans who have helped form the fabric of American history, culture and society.
Hanukkah-The Jewish Festival of Lights. Hanukkah is the Jewish Festival of Lights and it remembers the rededication of the second Jewish Temple in Jerusalem. This happened in the 160s BC (before Jesus was born).Hanukkah is the Jewish word for 'dedication'.) Hanukkah last for eight days and starts on the 25th of Kislev, the month in the Jewish calendar that occurs at about the same time as December.