Microsoft Excel 2002 offers two different voices that you can use with the Text to Speech feature. This article describes how to change the Text to Speech voice.icrosoft Excel 2002 offers two different voices that you can use with the Text to Speech feature. This article describes how to change the Text to Speech voice.
The endocrine system is made up of a network of glands. These glands secrete hormones to regulate many bodily functions, including growth and metabolism. Endocrine diseases are common and usually occur when glands produce an incorrect amount of hormones.
Hormones: the bodyâs chemical messengers. The human body secretes and circulates some 50 different hormones. A wide variety of these chemical substances are produced by endocrine cells, most of which are in glands. The hormones then enter the blood system to circulate throughout the body and activate target cells.ome of these substances then act on the other endocrine glands. Unlike substances produced by the exocrine glands, which flow through ducts, the hormones are released directly into the space that surrounds them by secreting cells.