The tangram (Chinese: ä¸å·§æ¿; pinyin: qÄ«qiÇobÇn; literally: seven boards of skill) is a dissection puzzle consisting of seven flat shapes, called tans, which are put together to form shapes.he first Tangram book to be published in America was based on the pair brought by Donnaldson. The puzzle was originally popularized by The Eighth Book Of Tan, a fictitious history of Tangram, which claimed that the game was invented 4,000 years prior by a god named Tan.
Get the facts on the misuse and abuse of prescription opioids such as hydrocodone, oxycodone, morphine, and codeine, and the illegal opioid, heroin. Opioids are a class of drugs chemically similar to alkaloids found in opium poppies. Historically they have been used as painkillers, but they also have great potential for misuse. Repeated use of opioids greatly increases the risk of developing an opioid use disorder.
Types of Opioids. There are many different types of opioids that are used medicinally. Although the term opiate is often used to refer to opioids as well, the term opiate technically refers to only the alkaloids that occur naturally in opium, the resin of the opium poppy (Papaver Somniferum).