Retractor (band)
Retractor may refer to: * Retractor (medical), a medical instrument * Retractor (memory), a person * Retractor (chess), type of a chess problem * Retractor muscle Skeletal muscles (commonly referred to as muscles) are organs of the vertebrate muscular system and typically are attached by tendons to bones of a skeleton. The muscle cells of skeletal muscles are much longer than in the other types of muscl ...

Retractor (medical)
A retractor is a surgical instrument used to separate and manipulate the edges of a surgical incision or wound, or to hold back underlying organs and tissues so that body parts underneath may be accessed. The broad term ''retractor'' typically describes a simple steel tool possessing a curved, hooked, or angled blade, which when in place helps to maintain the desired position of a given region of tissue during surgery. These simple retractors may be handheld, clamped in place, or suspended at the end of a robotic arm. Retractors can also be "self-retaining," and not need to be held once inserted, having two or more opposing blades or hooks which are separated via spring, ratchet, worm gear or other method. The term ''retractor'' is also used to describe distinct, hand-cranked devices such as rib spreaders (also known as thoracic retractors, or distractors) with which surgeons may forcefully drive tissues apart to obtain exposure. Different surgery specialties can have specific kin ...
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Retractor (memory)
In psychology, false memory syndrome (FMS) is a condition in which a person's identity and relationships are affected by false memories of psychological trauma, recollections that are factually incorrect yet strongly believed. Peter J. Freyd originated the term partly to explain what he said was a false accusation of sexual abuse made against him by his daughter Jennifer Freyd and his False Memory Syndrome Foundation (FMSF) subsequently popularized the concept. The principle that individuals can hold false memories and the role that outside influence can play in their formation is widely accepted by scientists. However FMS is not recognized as a psychiatric illness in any medical manuals including the ICD-10 or the DSM-5. False memory syndrome may be the result of recovered memory therapy, a term also defined by the FMSF in the early 1990s, which describes a range of therapy methods that are prone to creating confabulations. The most influential figure in the genesis of the theory ...
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Retractor (chess)
In chess problems, retrograde analysis is a technique employed to determine which moves were played leading up to a given position. While this technique is rarely needed for solving ordinary chess problems, there is a whole subgenre of chess problems in which it is an important part; such problems are known as ''retros''. Retros may ask, for example, for a mate in two, but the main puzzle is in explaining the history of the position. This may be important to determine, for example, if castling is disallowed or an ''en passant'' capture is possible. Other problems may ask specific questions relating to the history of the position, such as, "Is the bishop on c1 promoted?". This is essentially a matter of logical reasoning, with high appeal for puzzle enthusiasts. Sometimes it is necessary to determine if a particular position is legal, with "legal" meaning that it could be reached by a series of legal moves, no matter how illogical. Another important branch of retrograde analysi ...
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