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.
Yom Kippur. The Israeli Day Parade, variously known as the Salute to Israel or the Celebrate Israel Parade is an annual parade held in New York City each June to celebrate the creation of the State of Israel in 1948. The parade is billed by the organizers as the largest meeting of people in support of the nation of Israel in the world.