Effective in 2003, the Bureaus of Alcohol, Tobacco and Firearms (ATF), Federal Law Enforcement Training Center (FLETC), U.S. Customs, and the United States Secret Service (USSS) are no longer Bureaus of the Department of the Treasury.
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 is a control system of the human body much like the nervous system. The endocrine system produces chemical messages in the form of hormones, whereas the nervous system produces electrical messages.The endocrine system is made up of lots of specialised endocrine glands that secrete hormones into the bloodstream. Some of the major endocrine glands are shown on this diagram.he pituitary gland is known as the âmaster glandâ because its secretions control the activity of other endocrine glands. The activity of the pituitary gland is however controlled by the hypothalamus which as well as being an endocrine gland, is also part of the nervous system.