Posted on 12/30/2021 12:46:40 PM PST by Red Badger
The newly discovered muscle layer runs from the back of the cheekbone to the anterior muscular process of the lower jaw. (S= superficial layer, D= deep layer, C= coronoid layer) (Image credit: Jens. C. Türp, University of Basel / UZB) Scientists recently uncovered a part of the body that had never been described before: a deep layer of muscle in the masseter, which raises the lower jaw and is critical for chewing.
Modern anatomy textbooks describe the masseter muscle as having two layers, one deep and one superficial. "However, a few historical texts mention the possible existence of a third layer as well, but they are extremely inconsistent as to its position," the study authors wrote in a new report, published on Dec. 2 in the online edition of the journal Annals of Anatomy. So the team decided to check whether the prominent jaw muscle might have a hidden, super-deep layer, as the historical texts suggest.
To do so, they dissected 12 human cadaver heads that had been preserved in formaldehyde; they also took CT scans of 16 "fresh" cadavers and reviewed an MRI scan from a living subject, according to the report. Through these examinations, they identified an "anatomically distinct" third layer of the masseter muscle. This deep, deep layer runs from the zygomatic process — a bony projection that forms part of the "cheek bones" and can be felt just in front of the ear — to the coronoid process — a triangular projection on the lower jawbone.
(Excerpt) Read more at livescience.com ...
Pull tab. Discard after unpacking skull.
and they are in charge of our health? After centuries of human dissection, only now they find a new part?
I’m aghast in the same way…
And also “how typical…”
They’re wrong. The science has been long settled.
What does this picture have to do with the article?
I thought they were going to discuss the t’aint.
I thought they were going to discuss the t’aint.
Joe Biden wants to investigate further.
I thought the picture clearly explained why they just found this new structure, :)
I was hoping it was the muscle that constricted to stick one’s tongue out.
LMAO!
Oh please, il-liberals, who following the science, already knew about the Transgenderous.
Hmmmm….
I am going to need to chew on this one for a while.
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