Which level of organization in the body performs the MOST complex set of functions?

All the following are components of McCune-Albright syndrome except:

a. Café-au-lait macules b. Intestinal polyps c. Fibrous dysplasia d. Precocious puberty

The development of ____________________ as an adult is often caused by decreased blood flow to the pituitary, tumor compression of the pituitary, subarachnoid hemorrhage, traumatic brain injury, inflammation of the pituitary gland, or (in women) necrosis of the pituitary after childbirth.

Fill in the blank(s) with the appropriate word(s).