Temporary reduced blood flow to the brain is better known as fainting.
Answer:
Competition on the same receptor binding site
Explanation:
Adenosine is a neuromodulator or chemical in nervous system that makes humans feel tired while caffeine act as adenosine antagonist of adenosine blocker that makes human feel fresh.
Adenosine and caffeine both binds to the same receptor and compete for the same binding site. When adenosine binds to its receptors, the neural activity slows down but when caffeine binds to the same receptor, it do not allow adenosine to bind the same receptor and do not slows down the neural activity.
Hence, the correct answer is "Competition on the same receptor binding site".
<span>MORE than 8 million </span>U.S. healthcare workers<span> in hospitals may be </span>exposed<span> to </span>blood <span>or other </span>body fluids through<span> different types of contact like:
</span>Skin injuries with contaminated sharp instruments such as needles and scalpels (82%). ◦ Contact with mucous membranes of the eyes, nose, or mouth (<span>14%).</span>
I think that it's with a viral infection.
