- Carpal tunnel
Name = PAGENAME
Latin = canalis carpi
Caption2 = Transverse section across the wrist and digits. (The
median nerveis the yellow dot near the center. The carpal tunnel is not labeled, but the circular structure surrounding the median nerve is visible.)
DorlandsPre = c_04
DorlandsSuf = 12208551
human wristthere is a sheathof tough connective tissue(the flexor retinaculum) which envelops and protects several structures. The carpal tunnel is the space between this sheath (above) and the bones (below) making up the wrist and hand ( carpal bones).
* Tendons of the following muscles (not the muscles themselves):
flexor digitorum profundus
flexor digitorum superficialis
flexor pollicis longus
Some sources also include the
flexor carpi radialis,cite web |url=http://www.med.mun.ca/anatomyts/msk/wrist.htm |title=The wrist joint. |accessdate=2008-01-17 |format= |work=] although it is more precise to state that it travels in the flexor retinaculum which covers the carpal tunnel, rather than running in the tunnel itself.
Median nervebetween tendons of Flexor digitorum profundus and Flexor digitorum superficialis
The term 'carpal tunnel' is also used quite commonly to refer to '
carpal tunnel syndrome' which is a condition where the median nerve is compressed within the tunnel and causes pain and/or numbness of the wrist/hand, never proven to be the result of repetitive motion such as paintingor typing. It has been shown to be associated with obesity, hypothyroidism, diabetes, pregnancy, family history, rheumatoid arthritisand wrist shape. It can be associated with certain fractures of the forearm and wrist. Work relatedness is less than is currently thought by the lay public and by non-hand surgeons. Even work that has high force and high repetitions is only partially related to the development of carpal tunnel syndrome. The carpal tunnel is important because the median nerve can be compressed in cases such as the following:
Carpal tunnel syndrome
*Fractures around the wrist
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