The parathyroid glands are small endocrine glands in the neck of humans and other tetrapods that produce parathyroid hormone.Humans usually have four parathyroid glands, variably located on the back of the thyroid gland, although considerable variation exists.Parathyroid hormone and calcitonin (one of the hormones made by the thyroid gland) have key roles in regulating the amount of calcium in the blood and within the bones.umans usually have four parathyroid glands, variably located on the back of the thyroid gland, although considerable variation exists. Parathyroid hormone and calcitonin (one of the hormones made by the thyroid gland) have key roles in regulating the amount of calcium in the blood and within the bones.
1 Germans were very patriotic and proud. 2  The Weimar Republic did not fulfill many Germanâs desire for glory. 3  World War One did not make Germans lose faith in their ability to achieve victory. 4  Treaty of Versailles: all the handicaps above were in some way or another caused by this treaty.
Perhaps there is no better example of this than the Weimar Republic in Germany, which lasted from 1919 to 1933. Bookended by World War I and the rise of the Nazis and World War II, this lesson examines that curious time in Germany between the two most momentous wars of the previous century.esson Summary. The Weimar Republic that ruled Germany after World War I until the rise of Nazi Germany in 1933 was faced with the enormous task of simultaneously stabilizing post-war Germany and paying debilitating reparations to its former enemies.