Hookworm larvae burrow through the bottom of feet, swim through the blood and into the lungs, crawl up the trachea, get swallowed in the esophagus into the stomach, and then journey to the intestines to mature, reproduce, and lay eggs.
2. The Japanese word for “Uvula” (the dangly thing in the back of your throat) is “Nodo Chinko” (ノドチンコ), which directly translates to “Throat Penis.”
3. Tonsils are strategically placed near the airway in order to “catch” incoming bacteria and viruses. They often become infected as their main purpose is to sample these bodies and build up immunity so that the much more vulnerable lungs are able to fight off infection.
4. Everyone has an Adam’s Apple. The Adam's Apple is thyroid cartilage that acts as a shield for the larynx. It is more prominent in men because men commonly have a larger larynx.
5. Babies can drink and breathe at the same time, even though adults can’t. For the first 3 months of life their larynx acts like a little snorkel.
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7. Laser tattoo removal is the process of using different wave lengths of light to break down the metallic ink particles to sizes small enough that they can be passed to the liver by your body’s white blood cells.
8. The fertilizer used by the Tobacco Industry is radioactive. The plant absorbs it and the smoker inhales it. It gets lodged in the lungs and over time contributes a huge radiation dose to the smoker and could be a factor in lung cancer.
9. Common vaccines used on “hundreds of millions of people” were developed from lung tissue cells of a 3-month-old female human fetus aborted in Sweden in 1962. It’s not clear if the mother gave her permission.
10. Armstrong’s Limit is the altitude above which no human can survive without pressurization, even if using an oxygen mask. Water in the lungs will boil at body temperature, due to the reduced pressure. Above Earth, this begins 18–19 km (60,000–60,000 ft) above sea level.
It’s possible to die from Secondary Drowning. After someone comes close to drowning, the fluid trapped in their lungs can kill them hours later.
12. Corexit, the chemical dispersant used to “clean” the BP oil spill, is known to have high levels of toxicity in humans, with known links to lung damage, cancer, and other chemical poisoning effects. Corexit is still the go-to chemical for oil spills with no policies banning it in the US.
13. Tall thin males are at a much higher risk of spontaneous pneumothorax or sudden collapse of a lung.
14. The total surface area of all the alveoli in your lungs is about the size of a tennis court.
15. You can’t breathe while pooping because your epiglottis closes and you use the air pressure in your lung to push out the waste.
Before the invention of the heart-lung machine, surgeons used “cross circulation” for open heart surgeries. A child was connected to their parent’s heart, which oxygenated the patient’s blood and pumped it back in.
17. When you are born and take your first breath, the pressure change in your lungs causes a valve between the two atria in your heart to close and eventually fuse. When this doesn’t happen correctly a baby can have a hole in their heart, but initially everyone had the same hole.
18. Humans have odor receptors in the lung.
19. Drowning in salt water is different than drowning in freshwater. It takes longer, and salt water draws blood from the cells into the lungs. You drown in your own blood.
20. Hiccups are a holdover from early evolution when early land animals had both gills and lungs.
Strontium-90, an isotope emitted from nuclear fission, is chemically similar to calcium. This means that when it is inhaled after a nuclear blast, the body uses it as it would use calcium, depositing it straight into your bones where it delivers beta radiation to your bone marrow.
22. Fracture Putty is a material that is being developed that when packed in and around a bone fracture, provides full load bearing strength within days. It would create an osteoconductive bone-like structure that degrades into harmless resorbable byproducts as normal bone heals.
23. Males may have evolved facial features specifically designed to take a punch. Researchers found that facial bones commonly broken during a fight grew more resilient as time progressed and were the same bones that showed the most divergence between males and females.
24. We typically do not start to think of foods as “too sweet” until our bone growth stops. Younger children have virtually no limit to the amount of sugar they find palatable.
25. A pair of human feet consist of 52 bones and account for 25% of all bones in the body.