Limb has many 100 character, inflict hits a law correctly to be able to bring about dilocation, fracture and ligament to tear off, remove thereby enemy fighting capacity.

Wrist of １ , oar: Oar wrist by the oar wrist of radius the face is mixed articulatory of dish of composition acetabulum the articulatory head that bone of the hand navicular that lists with near side, month, trigonometry bone comprises forms. Platoon of 8 short bone basically relies on to ligament joins and be secured into two. The articulatory bag beam of wrist is wide and lax, inside face has feet side deputy ligament, side has oar side deputy ligament outside, back side and palm side part by consolidate of deputy ligament of side of back, palm. Wrist is listed in near side 3 carpal as carpal as far side row between, appearance is irregular, rely on a lot of small ligament coupling. Artifice joint is overall territory, up but oar comes 30 - 40 degrees, can bend downward reach 45 degrees, the extent that the left and right sides places is 35 degrees. If be twisted by the blow of outside force or lever force,be folded backward or the left and right sides is pigheaded turn, exceed its territory, can contuse, tear off ligament, and cause dilocation, fracture very easily.

Stroke method: Wrist of fierce make a sudden snatch, carry the department that attack wrist.
Stroke consequence: Carpal ligament tears off oar or fracture, articulatory dislocate.

2, ancon is articulatory: Ancon joint is a compound joint, by feet of humerus feet, humerus oar, oar 3 joint are by the bag jointly inside an articulatory bursa be formed. The articulatory bursa of ancon joint, around weakness, lax, two side increase deep tension, have consolidate of ligament of annulus of feet side, oar side, deputy ligament, radius. Ancon joint is complete when unbend most be afraid of from rear use force or hit, down to ligament gets hurt, articulatory dislocate or fracture.

Stroke method: Elbow of brandish rod bash.
Stroke consequence: Ligament is torn off, dilocation.

3, the shoulder is articulatory: Humeral joint is formed by the articulatory jar of bladebone and humeral head, belong to joint of typical shape of ball and socket. It is the joint with the most agile whole body. Articulatory ligament is little and the shoulder is weak, articulatory jar is small, articulatory bag is small and lax, articulatory pitch is big and wide, very few and firm ligament limits articulatory movement, articulatory and firm sex is poorer, its mobile limit is: Bend 90 degrees ahead, backward 45 degrees, 90 degrees are exhibited outside, adduction 40 degrees.

Stroke method: Brandish rod is broken off suddenly attack bladebone.
Stroke consequence: Ligament and muscle are torn off or dilocation.

4, knee joint: It is the biggest, structure is the most complex private parts in human body main and joint position. By the fluctuation joint with femur and corresponding condyle of tibial side of inside and outside the joint at the back of face and kneecap forms. Articulatory bursa is capacious and lax, there is powerful ligament consolidate all round. There is kneecap ligament in front, there is inclined ligament from the back, two side have deputy ligament of sural side and leg side respectively, there still are around across ligament and a pair of meniscuses inside joint. Knee joint can be bent only extend and rotate, cannot adduction and outside exhibit.
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