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.
Jewish festivals are the days celebrated by Jews. Some Jewish festivals happen on the same date every year, while others move around within a range of dates. Here we have provided the dates of the Jewish religious holidays for calendar year 2015 & 2014.All Jewish holidays begin in the evening after the sunset.ome Jewish festivals happen on the same date every year, while others move around within a range of dates. Here we have provided the dates of the Jewish religious holidays for calendar year 2015 & 2014.