The odorant molecules arrive either directly by diffusion into the mucus, or are supported by transport proteins (odor binding protein or OBP) that allow the hydrophobic molecules - majority - to penetrate the mucus covering the epithelium, and thus to reach the membrane receptors present on the eyelashes of the olfactory neurons. These transport proteins are thought to concentrate odorant molecules on membrane receptors. As ligands, the odorant molecules bind to membrane receptors on the eyelashes, triggering a transduction pathway for a stimulus involving G.olf protein (first messenger), adenylate cyclase, and cAMP ( second messenger). The second messenger causes the opening of ion channels Ca2 + / Na + present on the plasma membrane of the olfactory receptor, these two ions then enter the cell. Ca2 + causes the opening of a Cl- channel, the output of this ion causes depolarization of the membrane so that the olfactory receptor produces action potentials. These impulses will go directly to the olfactory bulb, in the prefrontal region of the brain, where this information (and that of taste) is processed by the body.
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CAN U NAME THEM DOWN BELOW?
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i understand that when you're frustrated you tend to not think in your actions, but you could've thought it through before throwing your glasses on the table. Your parents worked hard to get you the glasses, and glasses are pretty expensive. i do admit your parents are in the wrong too for hitting you for just having trouble with an assignment and getting frustrated. it sounds like your dad is pretty abusive, if he does this regularly with no reason at all, please do seek help.
Upper level because that’s where no one can see it but it is still good and far less expensive.
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a nurse who injured her back while moving a heavy patient
