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.
Answer
we should try practicing meditation Coz it will makes us physically active and it's good too for our healthy living if we aren't practicing in our daily living we may be unconscious and we may be sick too and it it's definitely worth
Explanation:
by meditating in peace and quiet place as like near to ocean or in forest or in meditation class we can develop our attention and attitude through it thus, if we don't know it's value than it will be just like a useless for us so we should make a habit of meditation...
I hope it will help u!
Answer:
I have asthma and have studied heavily in the respiratory system, how may I help you!?
Explanation:
The answer Is B. Hope this helps
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Explanation:
Improve methods for gathering and evaluating surveillance data. Ensure the use of surveillance data to improve public health practice and medical treatment. Strengthen global capacity to monitor and respond to emerging infectious diseases.
