fun fact thread (#4 - belgian blue and butchering pregnant cows)

[no_rules_just_play]

Hey guys,

I am studying vet and I have atleast two classes (anatomy and embryology) where the professor throws in awesome side information all the time.

If you heard of something funny/very interesting, post it in this thread! Accompany your fact of a picture!

[no_rules_just_play]

#1

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The human testis develop inside the body and shortly before birth they will descend into the scrotum through the anulus inguinalis externis. Normally the scrotum won't be able to be 'sucked in' again once the individu is adult.

Sumo wrestlers however want to avoid being grabbed by their testicles and will keep this anulus open by daily pushing their testis back in as kid. This way they can basically suck in their testis even when they are adults.

Problems occur when abdominal cavity contents protrude through this opened inguinal canal, this is called inguinal hernia and is often caused by lifting heavy things with spread legs (don't worry
fitness boys)

[no_rules_just_play]

#2

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Do you live close to the woods and did you find your cat dead on a little road as if it was hit by a car? It might not have been a car that killed it, but a bullet or a bear trap.  A few weeks ago we were explained by our professor who also is an avid hunter that we should be aware of this possibility as a vet and should perform an autopsy if needed.

Cats and hunters aren't the best friends, cats are a real plague for them as they breed like rabbits and hunt their game (rabbits etc...). Hubters used to shoot up to 8000 cats (usually stray cats) per year in Belgium alone, but since a few years there are laws that forbid this.

Hunters often still shoot cats though, or they use a bear trap which is extremely lethal to cats as their humerus has a foramen supracondylare. Through this foramen, an artery enters the humerus bone to provide bloodflow to the front paw. When a cat breaks it's humerus it will most certainly bleed to death.

To cover up the illegal killing, hunters sometimes throw the corpse in the back of their car, drive it to the nearest road and put it on the ground. Before they leave they make sure to drive one of their wheels over the dead cat to make it look as if it was hit by a car.

[Kafein]

Tell me things I don't know

[no_rules_just_play]

Feel free to post it before I do lil' shite

[Kafein]

98% of world population practices mucophagy regularly.

[no_rules_just_play]

Kafein practices caecophagy caecotrophy, two times per week.

Edit: typo woops

[Son Of Odin]

I got one for you

Btw did you know pink is a color that makes wasps mad? Might sting you just because you were wearing pink . In the olden days people used to paint outhouses pink from the inside because it kept wasps out from making nests in there.

[no_rules_just_play]

#3

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horses have a very long neck and an extremely heavy head. How are they able to hold this weight so far from their shoulders without getting tired?

Now take a look at the picture. What you see here is not a muscle, but actually an elastic ligament: the nuchal ligament.

Thanks to the elasticity of this ligament, the horse doesn't need to exert energy when.moving it's head upwards, it litarally gets passively pulled up. Only when the head needs to move to the ground, muscles are used and so the downward motion is active.

This way horses can keep their head up without getting tired and only have to use energy when holding the head at the ground. Horses without this ligament won't be able to move their head up.

[Clockworkkiller]

When you fart, small particles of poop fly out and that's what everyone smells.

[Armpit_Sweat]

When you fart, small particles of poop fly out and that's what everyone smells.

Larger poopfart particles are unable to escape the underpants - they reside on it's inner side, and that is why underpants are getting brown stains behind. Flipping underpants' sides, will effectively double it's wear-span, saving you money and time on washing.

[Zhyang]

the average person spends 1 year of life with looking for things / searching

[Utrakil]

The Fitzroy River turtle Rheodytes leukops respires through it's cloacal orifice when submerged.

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"The champion in this regard seems to be the recently discovered (1973) Fitzroy River turtle Rheodytes leukops ('white-eyed stream-diver'), which is confined to its namesake river in Queensland, Australia. It lives in shallow rapids where the water is highly oxygenated. One can detect the keen sense of discovery in the account by the scientists who found it, John Legler and John Cann: 'One of our vivid early impressions of Rheodytes was that adults of both sexes swam with a widely gaping cloacal orifice (up to 30mm in diameter). The orifice remains open when individuals are out of the water. We first became aware of the large cloacal bursae when a female was examined in bright sunlight; the carapace transmitted enough light to illuminate the coelomic cavity and produce a spectacular view internally for at least 100mm, via the cloaca, revealing a large sac lined with vascular, villose mucosa. . . . Water is pumped in and out of the bursae of captives and experimental animals at rates of 15 to 60 times per minute' (Legler and Cann 1980). Only dedicated herpetologists could characterize the vista up a turtle's gaping bunghole as a 'spectacular view.' But you can understand their enthusiasm--since the turtle's shell is only 260 millimeters long, a 100-millimeter-long bursa is relatively enormous. Up to 68 percent of the turtle's oxygen uptake is accomplished through the cloacal bursae, so it rarely needs to come to the surface to bask or breathe. 

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source:http://www.straightdope.com/columns/read/2325/is-it-true-turtles-breathe-through-their-butts

[Bob_Ross]

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[SixThumbs]

Never works when I try it.