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.
The endocrine system, shown in Figure 2, includes glands which secrete hormones into the bloodstream. Hormones are chemical messenger molecules that are made by cells in one part of the body and cause changes in cells in another part of the body. The endocrine system regulates the metabolism and development of most body cells and body systems through feedback mechanisms.