ischium

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I commented on a post on bookface about this “manspreading” absurdity, detailing why men sit the way they do and thought I’d do the same here for anyone interested or who thinks it’s all about oppressing women. Somehow.

The testicles are very sensitive to temperature, if they get too cold they draw up into the body to warm up; if they overheat the sperm cells die, causing infertility, this is usually temporary but prolonged overheating (and crushing so beware of very tight underwear) can cause permanent sterility.
Men have wider, denser and heavier upper bodies than women.
Men’s ischium bones (the ones you sit on) are closer together and their pubic ramus bones, used to balance when seated, are narrower, meaning that there is more weight on a smaller surface area. For comparison, sitting on very hard surfaces like stone or metal can be rather painful, you may find yourself parting your own legs to spread the weight more and alleviate the pain.
Men’s acetabulum and, indeed, the entire pelvis is narrower meaning the thighs are closer together, combined with higher upper body mass on a smaller point of contact, they need to sit with their legs perpendicular in order to remain upright, particularly when in a moving vehicle. Sitting upright and still with legs closed when stationary is uncomfortable, but when in a moving object that stops and starts and bumps and jumps, it’s impossible.

Effetto

Whooshing errantly
On the compact pendulum
Of my atomic body clock
Axon
The diminutive node
Of nerve cell relay
Reaches out for you
Though dendrite
Longingly carries you
Always back to my sacrum
In blooming tentacles
Of breeching sciatic alertness
Stirring vertical Ischium shivers
Through longitude spine
An impending boomerang
Repossessing the wind

Mirischia asymmetrica

Source: http://en.academic.ru/dic.nsf/enwiki/1615189

NameMirischia asymmetrica 

Name Meaning: Asymmetrical Wonderful Hip Joint

First Described: 2004

Described By: Naish et al. 

ClassificationDinosauria, Saurischia, Eusaurischia, Theropoda, Neotheropoda, Averostra, Tetanurae, Orionides, Avetheropoda, Coelurosauria, Tyrannoraptora, Compsognathidae

Mirischia was another small compsognathid. from the Albian age of the Early Cretaceous period, about 108 million years ago. It was found in the Romualdo Member of the Santana Formation in Brazil (another cool animal for our Brazilian friends!) It is characterized by the fact that its left ischium (portion of the hip bone) is different from the right one. It was about two meters long, and a small bipedal predator. It had an air sac between its pubic and ischial bones, much like birds. It had very thin bones as well, much like birds. It most likely had feathers. 

Source: 

http://en.wikipedia.org/wiki/Mirischia

Shout out goes to blues-jay!

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