Enteroendocrine cells of the intestine are the most numerous endocrine cells of the body. In a sense they are known to act as chemoreceptors, initiating digestive actions and detecting harmful substances and initiating protective responses.
The typical manufacturer's warranty on a solar panel is 25 to 30 years, but panels can last up to 40 years with care and attention.
Similarly, Samsung has a life span for about 100,000 hours for its Samsung Plasma T.V. and L.G has a life span of about 100,000 hours for its both Plasma and LCD T.V and sharp LCD panels have an hour life of 100,000. How long does a Plasma T.V last also depends upon how one watches it.