Q 2033867742.     You have learnt that a characteristic feature of endocrine system is the presence of
feed back loops. By this what is meant if hormone A stimulates gland 'X' to secrete
hormone B, the production of'A' could be modified when the level of B changes in our
blood. An example is the relation between hormones LH and estrogen ( E ). An old
woman exhibits the following features. High levels of LH in blood but low levels of E in
the blood. Another woman exhibits high level of LH in blood and also high level of E in
the blood. Where is the defect in both these women? Provide suitable diagram to
support this answer.