19 facts about the human body that you didn't know if you'd like a more
educational fix for your horror fascination why not look inside the
mysteries of the human anatomy sure you won't see serial killers roaming around
your bloodstream but studying the human body unlocks stories of zombie proteins
mystery resurrections unrelenting stalkers stone fetuses and the
ever-popular exploding bodies you might be surprised
now keep watching for facts about human body parts that will totally creep you
out before we begin this video don't forget to subscribe to our channel for
more daily tips like this and turn on notifications so you never miss our new
videos number 19 the brain we like to imagine that our brains have some
firmness and dignity to them but they're actually almost as soft as jello while
brains used in anatomy labs tend to be firm they've generally been fixed with
formaldehyde a human brain in the wild is about 3 pounds of easy dented goop
that's responsible for everything we think feel and experience the human
anatomy sure is pretty interesting isn't it
number 18 hydrochloric acid hydrochloric stomach acid the digestive acid in our
stomachs is as acidic as battery acid the body has a system of defenses to
keep the stomach acid from eating through our skin starting with the
epithelial wall cells of the stomach they make a basic mucus coating to cover
the inside of the stomach even then these stomach cells have one of the
fastest life cycles of any in the human body dying after only days want to know
about one extremely creepy fact about the human anatomy and the human body
that has to do with decomposition well stick around until the end to find out
what it is number 17 pain receptors although the brain
interprets pain signals it doesn't have any pain receptors itself this allows us
to perform conscious surgery for neurological conditions like brain
tumors and epileptic seizures enabling us to ask the patient about the bodily
sensations surgery is producing number 16 digestive tract
our digestive tract is essentially a 30-foot long tube with no interruption
between mouth and anus because of that nothing in the digestive tract is really
inside us it's just passing through the tube in the middle of us for a little
while number 15 pinky finger your delicate
pinky finger is in fact responsible for half of your hand strength while the two
front fingers coordinate on dexterity tasks the Pinky and the ring finger work
together to give the hand its power number 14 kidneys many people have more
than two kidneys if you are given a kidney transplant for a poorly
functioning kidney they leave the old kidney in that's because having the
extra kidney function at 1 or 2% is better than not functioning at all and
because it's such a big deal to remove the old one number thirteen bacterial
cells as of 2016 scientists believe that there are as many bacterial cells living
in your body as there are cells in your body itself how is that possible well
most of the bacterial cells are far smaller than human bodily cells meaning
that it's not even a stretch for them to fit don't worry
most of these cells are benign relatively number 12
spinal arc reflex the Lazarus sign is a spinal arc reflex that causes the arms
to rise and cross over the chest much like a mummy now that's pretty cool on
its own but what makes it creepy is that it can happen
after you're dead spinal arc reflexes are relayed directly to the spine
without any need to run through the brain so they can happen even after the
brain has already died number eleven zombies prions are the zombies of the
microbial world little proteins that infect other proteins into behaving like
them despite not being alive prions are responsible for mad cow
disease as well as kruetzfeldt Jakob disease a universally fatal brain
disorder in humans there's no known cure for these zombies but they can infect
you if you eat any beef tainted with mad cow disease and they're almost always
fatal number 10 the liver our liver function is vital to our existence the
liver is one of the only organs in the body that's capable of regeneration and
it can regenerate after the loss of as much as 75 percent of its volume that's
why a live donor can donate part of their liver the donated portion will
grow back afterwards during liver regeneration most of the functions of
the liver remain normal yikes did you know this fact about our
liver function the I sure didn't number nine walking humans aren't
particularly strong and we aren't particularly tough but we are incredibly
stubborn although slower than many other animals
our endurance when walking enables us to outpace other animals over the long run
early humans use this strategy called persistence hunting to literally walk
their prey to death number eight thinking with your stomach
if you've ever been accused of thinking with your stomach it might comfort you
to know that all humans technically do the ens enteric nervous system is a set
of semi independent neurons governing the gastrointestinal system it's made up
of five hundred million neurons just one two hundredths of the cells in the human
brain and it stretches between the esophagus and the anus number seven the
human body glows if you've ever marveled at a fireflies
glow you'll be thrilled to hear that humans are also bioluminescent in 2009
Japanese scientists released a study showing that under ultra sensitive
cameras human beings produced a tiny amount of visible light it's a thousand
times weaker than anything we could detect with the naked eye but it's still
pretty cool right number six our skin the skin is the
largest human organ if you stretched out the skin of an adult male it would be
around 21 square feet also your skin has multiple layers and the outermost one
the corneal layer of the epidermis is mostly dead talked about a cool organ
right number five being in space without a suit if you're ever caught out in
space without a suit don't worry your blood won't boil you won't explode and
you won't freeze while gases expand and liquids boil in a vacuum you'd be
protected by the envelope of your body instead you die from lack of oxygen
asphyxiated after a few minutes in the cold dark vacuum of space
isn't that so much better number four saliva every day our mouth produces two
to four liters of saliva which is important because saliva contains
enzymes that start breaking down food in our mouths before we even swallow it
even better the saliva is filled with far more
bacteria than our urine which is relatively sterile YUM
number three jaw muscles your face would look pretty nightmarish without muscles
and most of the difference is around the jaws that's because your misete are one
of the muscles involved in chewing is one of the strongest muscles in the body
pound for pound think about that the next time you're biting into an apple
number two mites in our eyelashes those of you who had traumatic early
experiences with lice should skip this next segment all the louse folks out
good because there may be tiny mites living in your eyelashes demodex mites
are microscopic little critters that thrive on people's skin oils they aren't
usually troublesome but if you've got too many of them they can cause
inflammation now that you've made it to the end here's the number one creepy
fact about the human body and it has something to do with decomposition
number one decomposition this is one of the worst facts about the human body
parts I've ever heard so of course I needed to pass it along
see after death there's a natural decomposition process that a body
follows and if the body's left in a place without oxygen like too tightly
sealed in a casket anaerobic bacteria can literally turn the body to brown
sludge releasing gases that quite literally make the casket explode
afterwards the sludge often drips out of the casket decomposition is creepy
enough already and I'm about to make it even creepier see it starts out a few
minutes after death with something called a loose
or self digestion as the cells run out of oxygen to deal with their toxic
byproducts enzymes start to digest the cell membranes yum which fact from this
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