Chin Na

Chin na or Qinna (擒拿) is the set of joint lock techniques used in the Chinese martial arts to control or lock an opponent's joints or muscles/tendons so he cannot move, thus neutralizing the opponent's fighting ability. Chin na su (Chinese: 術; pinyin: shù meaning technique) literally translates as technique of catching and locking in Chinese. Some schools simply use the word na to describe the techniques. Chin Na features both standing and ground based grappling techniques.

Some Chinese martial arts instructors focus more on their Chin Na techniques than others. This is one of the many reasons why the Chin Na of one school may differ from that of another. All martial arts contain Chin Na techniques in some degree. The southern Chinese martial arts have more developed Chin Na techniques than northern Chinese martial systems. The southern martial arts have much more prevalent reliance on hand techniques which causes the practitioner to be in closer range to their opponent. There are over 700 Chin Na traditional techniques found in all martial arts. In the Non-Temple White Crane style there are 150-200 Chin Na techniques alone. Along with Fujian White Crane, styles such as Northern Eagle Claw (Ying Jow Pai) and Tiger Claw (Fu Jow Pai) have Chin Na as their martial focus and tend to rely on these advanced techniques.

Chin

The chin or the mental region is the area of the face below the lower lip and including the mandibular prominence. It tends to be smaller and more rounded in human females, while bigger and more square in human males. It is formed by the lower front of the mandible. In humans there is a wide variety of chin structures, e.g. cleft chin.

In human evolution, the chin is a cladistic apomorphy, partially defining anatomically modern humans as distinct from archaic forms. Non-human anthropoid apes have a simian shelf for example. Elephants are the only other animals considered to display such a feature, although this leads to debate over the use of the term.

The chin emerged during the Middle and Late Pleistocene, but its origin and biomechanical significance are the subjects of controversy. Prominent hypotheses include buttressing the jaw against stresses resulting from speech or chewing as well as simple sexual selection through mate choice. With the advent of more advanced computational facilities, finite element analyses have been used to support hypotheses involving mechanical stress. On the other hand, increased availability of data regarding sexual dimorphism in chins has also lent support to the sexual selection hypothesis as sexual dimorphism is more difficult to explain under other regimes. It is possible that multiple causal factors have played a role in the chin's evolution.

Chinú

Chinú is a town and municipality located in the Córdoba Department, northern Colombia.

References

Coordinates: 9°05′N 75°20′W / 9.083°N 75.333°W / 9.083; -75.333

Chen (surname)

Chen ([ʈʂʰə̌n]) or Chan (simplified Chinese: 陈; traditional Chinese: 陳; pinyin: Chén; Wade–Giles: Ch'en) is one of the most common Han Chinese and Korean family names. It ranks as the 5th most common surname in China, as of 2007 and the most common surname in Singapore (2000) and Taiwan (2010). Chen is also the most common family name in Guangdong, Zhejiang, Fujian, Hong Kong (spelt Chan in Hong Kong and Macau). It is the most common surname in Xiamen, the ancestral hometown of many overseas Hoklo. Besides 陳/陈, an uncommon Chinese surname 諶/谌 is also romanized as Chen.

It is usually romanised as Chan in Cantonese, most widely used by those from Hong Kong, and sometimes as Chun. The surname Chen is also used in Hong Kong Cantonese, but not as often. The spelling, Chan, is widely used in Macao and Malaysia. In Min (including dialects of Chaoshan (Teochew), Hainan, Fujian, and Taiwan), the name is pronounced Tan. In Hakka and Taishanese, the name is spelled Gin. Some other Romanisations include Zen (from Wu), Ding and Chern. Chen can be variously spelt Tan, Chan or Chin in Singapore, Malaysia, Philippines and other Southeast Asian countries.