The 3rd compartment contains extensor pollicis longus.
2.
If necessary, the extensor pollicis longus and the flexor pollicis longus are reattached to centralize their course.
3.
It was also identified as a slip of the extensor indicis proprius to the extensor pollicis longus in an Indian cadaver.
4.
Other muscles in the forearm also innervated by the radial nerve are supinator, extensor pollicis brevis, extensor pollicis longus, and abductor pollicis longus.
5.
It was reported as an unusual juncturae tendinum, a tendinous connection between tendon of the extensor pollicis longus and tendon of the extensor digitorum communis to the index finger.
6.
So for example, the " flexor pollicis longus " and " flexor pollicis brevis " oppose the " extensor pollicis longus " and the " extensor pollicis brevis " in the movement of the thumb.
7.
Weak or absent extensors and / or abductors ( the extensor pollicis brevis tendon, the extensor pollicis longus tendon or, rarely, the abductor pollicis longus tendon ), can cause a disbalance, leading to an abnormal position of the thumb : congenital clasped thumb.
8.
The tendons of the extensor pollicis longus and extensor pollicis brevis form what is known as the anatomical snuff box ( an indentation on the lateral aspect of the thumb at its base ) The radial artery can be palpated anteriorly at the wrist ( not in the snuffbox ).
9.
On its upper part is an oblique ridge, which runs from the dorsal end of the radial notch, downward to the dorsal border; the triangular surface above this ridge receives the insertion of the Supinator, the abductor pollicis longus, the extensor pollicis longus, and the extensor indicis proprius.
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