Question

The diagram given alongside shows an endocrine gland in the human body. Study the diagram and answer the following questions:

1. Identify the gland. Write its specific location in the human body.
2. Label the guidelines 1, 2 and 3 shown in the figure.
3. Name any two secretions from part 1 and two from part 2.
4. The deficiency of which hormone causes Diabetes insipidus? How is this condition different from Diabetes mellitus with respect to the abnormal substances present in the of urine.

Answer 1

1. The pituitary gland is shown above. A small projection hangs from the base of the midbrain, below the hypothalamus.
2.    
   1. Anterior Pituitary
   2. Posterior Pituitary,
   3. Hypophyseal stalk
3. Hormones produced by the anterior pituitary gland, including TSH. Posterior pituitary hormones include antidiuretic hormone (ADH) and oxytocin.
4. Diabetes insipidus is caused by antidiuretic hormone deficiency. In this disease, the urine does not include glucose. However, in Diabetes mellitus, glucose is present in the urine.