How the Body Works in General

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How the Body Works in General

bodytune

Date: 18 July 2008

How the Body Works in General

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$Video Info::<table><tr><td width='30%' valign='top'>Title</td><td width='1%' valign='top'>:</td><td width='89%'>How Hormones Work</td></tr><tr><td valign='top'>Details</td><td valign='top'>:</td><td>How Hormones Work Hormones act as chemical messengers and are secreted into the bloodstream by the endocrine glands for distribution around the body. Each hormone acts only upon specific types of cells---those bearing the correct membrane receptor sites. These are the \target cells\ for the hormone. Within the bloodstream there are many different hormones. When specific receptor sites are not filled, cells remain \turned off\. As hormones attach to receptor sites, they initiate a \switch on\ reaction in the cell cytoplasm---this reaction is usually the production of the chemical cyclic adenosine mnophosphate or cyclic AMP from ATP. Cyclic AMP acts as a messenger--within the cell-- to activate the cells production lines. The activity in the bloodstream of some hormones, such as adrenaline, may last for only ten minutes. Others, including some sex hormones, have a longer life. Hormones may be inactivated by the target cells or by the liver, and the breakdown products, when their actions have been completed, are either excreted or reused in the further manufacture of hormones.</td></tr><tr><td>Category</td><td>:</td><td>How the Body Works</td></tr><tr><td>Views</td><td>:</td><td>413</td></tr><tr><td>Votes</td><td>:</td><td>0</td></tr><tr><td>Rating</td><td>:</td><td></td></tr><tr><td>Downloads</td><td>:</td><td></td></tr><tr><td>Added by</td><td>:</td><td>bodytune</td></tr><tr><td>Date</td><td>:</td><td>2008-07-27 05:44:58</td></tr></table>$	How Hormones Work ...
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	Smoking and Drinking Alcohol dangers on the Body ...
	IQ and Culture ...
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	The Placenta ...
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	Release of Urine ...
	effects of drugs on consciousness ...
	Balance ...
	The Makeup of the Body ...
	Ultrasound of fetal umbilical cord. ...
	Control of the Anterior Pituitary Gland ...
	Brain Weight ...
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	Ultrasound of fetal heartbeat ...
	Hormones in Labor ...
	The Lymphatic System ...
	Eye Color ...
	Sensory Pathways ...
	The Alimentary Canal ...

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