Tom Harley is a motorcycle enthusiast who goes out rid unexpectedly in front of him. Tom falls hard on his face and ing every weekend. One day he rear-ends a car that stops badly fractures nose and sphenoid bone. He recov ers , but ever since then he has had polyuria --he produces enormous amounts of urine each day and he is continually dehydrated and intensely thirsty . In view of your knowledge of the pituitary gland , explain how his injury could have led to this condition .