Are there any parts of the human body that get oxygen directly from the air and not from the blood?
Are there nuclear reactions going on in our bodies?
Can humans ever directly see a photon?
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(1)The cornea is the only part of a human body that has no blood supply; it gets oxygen directly through the air. The cornea is the fastest healing tissue in the human body, thus, most corneal abrasions will heal within 24-36 hours.
(2) Inside each atom is a nucleus which is a collection of protons and neutrons linked together by nuclear bonds. ... Nuclear reactions do indeed occur in the human body, but the body does not use them. Nuclear reactions can lead to chemical damage, which the body may notice and try to fix
(3) Yes. In fact, photons are the only things that humans can directly see. A photon is a bit of light. ... When the photons strike your retina, your cone and rod cells detect this pattern and send it to your brain.
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