Not why, but how does a cat purr?

Question

Not why, but how does a cat purr?

Answer 1

How does a cat purr?


There has been a lot of speculation on how purring occurs. According to some, a purr is created by the vibration of a cat's vocal cords when it inhales and exhales. Others feel it is caused by soft palate vibrations. Some have wondered if cats have a set of false vocal cords within the larynx.

Some researchers theorize it is a vibration caused by blood passing through the large veins in the cat's chest cavity, amplified by the diaphragm, which passes up the windpipe and into the windpipe and into the sinus cavities of the skull.

Electromyographic tests - they measure the level of electrical activity in muscles - seem to indicate it is caused by the activation of the muscles of the larnyx, and partial closure of the glottis (the opening of the larnyx).



The most recent declarative statement found on the web was made by Katharine Houpt, director of the Animal Behavior Clinic at Cornell University. In 2002, she is quoted as saying: "It's a vibration of the larynx that resonates down to the windpipe and into the diaphragm. Unlike meowing or human speech, purring isn't the result of air passing over the vocal cords".

Answer 2

How does a cat purr?


There has been a lot of speculation on how purring occurs. According to some, a purr is created by the vibration of a cat's vocal cords when it inhales and exhales. Others feel it is caused by soft palate vibrations. Some have wondered if cats have a set of false vocal cords within the larynx.

Some researchers theorize it is a vibration caused by blood passing through the large veins in the cat's chest cavity, amplified by the diaphragm, which passes up the windpipe and into the windpipe and into the sinus cavities of the skull.

Electromyographic tests - they measure the level of electrical activity in muscles - seem to indicate it is caused by the activation of the muscles of the larnyx, and partial closure of the glottis (the opening of the larnyx).



The most recent declarative statement found on the web was made by Katharine Houpt, director of the Animal Behavior Clinic at Cornell University. In 2002, she is quoted as saying: "It's a vibration of the larynx that resonates down to the windpipe and into the diaphragm. Unlike meowing or human speech, purring isn't the result of air passing over the vocal cords".

Answer 3

It turns out that cats have special wiring! The wiring travels from the brain to the muscles in the voice box, and this wiring is able to vibrate the muscles so that they act as a valve for air flowing past the voice box. The muscles work both during inhalation and exhalation, which creates the impression that cats can purr continuously. The air passes through the valve, which opens and closes rapidly to create the purring sound.

Answer 4

vibrations of vocal cords

Answer 5

http://www.canadianpetcare.com/article207.html

Answer 6

when it likes you to rubb it in a speacial spot.