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Why do Scitech whales not get brain damage while swimming?

 Last Update: 2022-10-01
 Source: Internet
 Author: User

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In today's news, 230 pilot whales stranded on the west coast of Australia's Tower Island, and some people speculate that it may be due to the impact of magnetic field pulses
.

There are many theories about the exact use of these vascular networks that support whale brains and spines, known as "retia mirabilia," or "wonderful webs," but now zoologists at UBC University believe they have solved the puzzle, and their predictions are backed
by computer modeling.

Land mammals like horses have a "pulse" in their blood when they run, and with each step, blood pressure in the body fluctuates
up and down.

In all mammals, the average blood pressure in the arteries or in the blood flowing out of the heart is higher than in the veins
.

Dr.

The researchers collected biomechanical parameters for 11 cetaceans, including fluke frequencies, and fed that data into a computer model
.

"Our hypothesis that swimming produces internal pressure pulses is new, and our model supports our prediction that pressure pulses generated by motion can be synchronized by a pulse transfer mechanism, thereby reducing flow pulsations by up to 97 percent," said senior author Dr.

Dr.

"As much as interesting they are, they are inherently inaccessible," he said
.

Retia mirabilia: Protecting the cetacean brain from locomotion-generated blood pressure pulses

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