Information: - Body piercing, a form of body modification, is the practice of puncturing or cutting a part of the human body, creating an opening in which jewelry may be worn. The word piercing can refer to the act or practice of body piercing, or to an opening in the body created by this act or practice. Although the history of body piercing is obscured by popular misinformation and by a lack of scholarly reference, ample evidence exists to document that it has been practiced in various forms by both sexes since ancient times throughout the world. - PFIQ is the acronym and common name for a publication known as Piercing Fans International Quarterly, which was published by Jim Ward from 1977 to 1997. Ward pioneered the field of body piercing and operated The Gauntlet, which was the first commercial establishment to offer the service in the United States. - Surface piercings are any body piercings that take place on the surface sewn into the body through areas which are not particularly concave or convex, where the piercing canal transverses a surface flap of skin, rather than running completely through a piece of body tissue from one side to another. A surface bar follows the plane of skin, while a standard piercing is pierced through the plane. - In human anatomy, the wrist is variously defined as 1) the carpus or carpal bones, the complex of eight bones forming the proximal skeletal segment of the hand; (2) the wrist joint or radiocarpal joint, the joint between the radius and the carpus; and (3) the anatomical region surrounding the carpus including the distal parts of the bones of the forearm and the proximal parts of the metacarpus or five metacarpal bones and the series of joints between these bones, thus referred to as "wrist joints". This region also includes the carpal tunnel, the anatomical snuff box, the flexor retinaculum, and the extensor retinaculum. - The forearm refers to the region of the upper limb between the elbow and the wrist. The term forearm is used in anatomy to distinguish it from the arm, a word which is most often used to describe the entire appendage of the upper limb, but which in anatomy, technically, means only the region of the upper arm, whereas the lower "arm" is called the forearm. It is to the region of the leg that lies between the knee and the ankle joints, the crus. - A hand is a prehensile, multi-fingered organ located at the end of the forearm or forelimb of primates such as humans, chimpanzees, monkeys, and lemurs. A few other vertebrates such as the koala (which has two opposable thumbs on each "hand" and fingerprints remarkably similar to human fingerprints) are often described as having "hands" instead of paws on their front limbs. The raccoon is usually described as having "hands" though opposable thumbs are lacking. - In the human body, the carpal tunnel or carpal canal is the passageway on the palmar side of the wrist that connects the forearm to the hand. - A wrist piercing is a piercing through the surface of the wrist , first popularized by Jon Cobb in PFIQ . Wrist piercings are a type of surface piercing . They carry a high rate of rejection and migration , unless they are properly measured and placed . They may reject if they are not pierced properly , as they are in a part of the body that moves constantly and are easy to irritate , catching on clothing or other objects . People with wrist piercings are advised to put on short sleeved t - shirts , singlets so as to prevent the surface barbell from catching onto the threads of the clothing . Also , wrist piercings can only be done with a special tool ( to hook the other side of the surface barbell upside ) and thus , it is of high difficulty for it to be home - made . Piercers would also advise that , after getting a wrist piercing , the person is to soak and moisten the wound with mild salted solution so as to disinfect the area , preventing bacteria from entering the unclotted wound . The span of a wrist piercing ranges approximately from as short as 2 weeks to 6 or 7 months . What is the relationship between 'wrist piercing' and 'body piercing'?
A:
subclass of