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Encyclopedia Britannica - Main :: EUD-FAT |
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EXTENSOR LONGUS POLLICIS EXTENSOR INDICIS From A. M. Paterson
Book
passing across from the lower
radius
nerve , but the flexor profundus digitorum has an extra twig from the ulnar. The extensor muscles at the back of the forearm are also divided into superficial and deep sets (see fig. 8). The former rise from the region of the external condyle of the humerus, and consist of the extensor carpi radialis longior and brevior inserted into the index and medius metacarpal bones, the extensor communis digitorum to the middle
From A. M. Paterson
Book
the extensor indicis joins the extensor communis slip to the, index finger
nerve . In front and behind the wrist the tendons are bound down by the anterior and posterior annular
finger
big toe, and the peroneus tertius, a purely human muscle inserted into the base of the fifth metatarsal bone. All these are supplied by the anterior tibial nerve. The external group comprises the peroneus longus and brevis, rising from the outer surface of the fibula and inserted into the tarsus (fig. I I), the longus tendon passing across the sole
extensor communis between the heads of the metacarpal bones, while. rising from the shafts of these bones, are the three palmar and four dorsal interosseous muscles (fig. 9, e) which also are inserted into the extensor tendons. The two outer lumbricals and the thenar muscles are supplied by the median nerve; all the other hand muscles by the ulnar. End of Article: EXTENSOR LONGUS POLLICIS EXTENSOR If you wish, you can link directly to this article.
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