1.   Most tumors secrete hormones that stimulate new vessel growth around them, to speed delivery of oxygen-rich blood.

2.   Maybe I secreted some hormone that gave the average Tellenorean a violently unpleasant feeling.

3.   Saliva dries up, the pupils dilate, and many, many hormones are secreted into his bloodstream.

4.   Endocrinology is the study of the form, function and treatment of the endocrine system, the network of glands that secrete hormones that affect the workings of organs.

5.   He has a Ph.D. in endocrinology, which very, very basically is the study of glands that secrete hormones.

6.   The hormone is secreted mainly during the nondreaming phase of sleep known as slow-wave, or deep, sleep.

7.   The ob gene instructs fat cells to secrete a hormone called leptin, which travels through the bloodstream and signals the brain when the body has stored enough fat.

8.   The pituitary gland is attached to the base of the brain and secretes hormones influencing body growth and metabolism.

9.   The pituitary gland plays the most important role in human reproduction because it secretes the hormones that control reproductive activity in the gonads.