Why is the Chin Considered a Weak Spot in Hand-to-Hand Combat?

[Chitose]

Hello, Chitose here

while I'm learn about hand in hand combat, someone told me that to always protect my chin.
"No matter how strong, big or well train people are, getting direct hit at chin will take him down instantly"

in boxing, both fighter are also protect and try to hit each other chin.

I wonder why? is chin is connect to our brain? or cluster of nerve?

And Dose animal chin is weak spot like human?

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English is not my native language, forgive me if I'm wrong in spelling of gamma.

 

[russ_watters]

There is a nerve running around your jaw line. Its even easier to take someone down with a blow to the base of the neck at the shoulders as a nerve runs across the top of your shoulders too.

See: http://failblog.org/2010/12/05/epic-fail-video-demonstration-dummy-fail/

 

[Andy Resnick]

Also, lateral movements of the chin place stress on the jaw (temporomandibular joint). I imagine a well-placed blow could dislocate someone's jaw fairly easily.

 

[Spinnor]

Protect your head, and other stuff.

http://www.ehow.com/way_5371865_place-deliver-knockout-punch.html

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Circulation to the Brain Compressed

A blow to the chin, lower jawline or base of the neck jars the nerves located in that region. These nerves are integral in controlling various digestive functions such as the jaw muscles, the tongue and the sinuses. This creates an initial shock to the boxer's system. The force of the punch snaps the boxer's head back or to the side and causes the blood circulating in the brain to compress. As this happens, the boxer loses control over his body and drops to the ground.

Guarding your chin and your head are the first line of defense. A strong neck may help reduce knockouts since strong neck muscles may allow a boxer to keep his head steady, reducing the chance that the head will snap backward or to the side when hit. This would reduce the chance of the blood compressing in the brain and thereby reduce the chance of getting knocked out.
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http://everythingfight.blogspot.com/2010/02/how-to-throw-knockout-punch.html

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Back to the brain… This floating organ in our head is like a rodeo cowboy and goes with flow whichever direction our head goes. A sudden powerful hit will jerk your head so violently that the floating brain will bounce around in the skull hitting the bony walls. This is what you call trauma and it will make the nerves all over your body go in an electrical haywire. In effect, your body will go limp or may sometimes do uncontrollable jerky movements and in many cases, you will be out only to wake up with a mammoth headache.
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http://www.google.com/search?um=1&h...he chin&biw=1024&bih=579&ie=UTF-8&sa=N&tab=iw