The figure below shows the two main families of acetylcholine receptors: muscarinic and nicotinic. In structural terms, muscarinic receptors are G-coupled protein receptors, while nicotinic receptors are ligand-gated ion channels. They can be found on both sides of the synaptic cleft (presynaptic and postsynaptic).
After the pressure drops below 40 psi, the electrical switch turns on the pump and the pressure in the tank increases. Any failure in any component or loss of electricity can cause a well to suddenly stop producing water when a faucet is turned on.
Why do I get a headache when I drink water? Asked Jan 11, 2008, 07:56 AM â 4 Answers Whenever I drink water on its own it give me a headache and makes me feel sick.It's not like its too cold or I drink too much or anything it just makes me avoid it.It's really starting to annoy me because I would like to be able to drink water on its own!does anyone know if there is any reason for this?