Wednesday, March 28, 2018

Annals of Settled Science: Your body's new organ

With all that's known about human anatomy, you wouldn't expect doctors to discover a new body part in this day and age. But now, researchers say they've done just that: They've found a network of fluid-filled spaces in tissue that hadn't been seen before.

It's called the interstitium, and I invite you to close your eyes and spell it out loud.
These fluid-filled spaces were discovered in connective tissues all over the body, including below the skin's surface; lining the digestive tract, lungs and urinary systems; and surrounding muscles.

Previously, researchers had thought these tissue layers were a dense "wall" of collagen — a strong structural protein found in connective tissue. But the new finding reveals that, rather than a "wall," this tissue is more like an "open, fluid-filled highway."
Why this is important: The findings appear to explain why cancer tumors that invade this layer of tissue can spread to the lymph nodes. According to the researchers, this occurs because these fluid-filled spaces are a source of a fluid called lymph and drain into the lymphatic system.

The scientists would not speculate on speculation that your interstitium is why tickling works.
It's the pink stuff at the bottom.

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