the mysterious drone

One of the most distinguishing characteristics of the cat is the drone. Although the drone; it is associate with a good mood, one has heard cats ronronear when they are sore, anxious or nervous.

The form has studied widely in which the cats ronronean.

A popular explanation, not accepted by all the zoologists, is that the drone is from the vibration of false vocal cords, two sheets of the membrane behind the cords in the larynx.

Another theory is that the drone is from an increase in the sanguineous flow of the vein digs, the main artery that returns the blood to the heart.
This vein is narrowed to pass the liver and the diaphragm. When a cat bends its back, the blood is crowded around and she becomes turbulent in this narrow area, originating the vibrations that we called drone.

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