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Extensoii carpi radialis brevior.—Radialis exlemus
brevior.—Epiconydlo-super-metacarpeus.—This muscle is al-
most the same in origin and nse with the former. It is in-
serted into the fore-part of the metacarpal bone of the mid-
dle finger.

Extensor digitorum communis.—Epiconclylo-supcr-pha*
langeus communis.—This muscle covers the middle of the
back part of the fore-arm, and betwixt the extensor radialis
tecimdus and the extensor minimi digiti. It arises from the
outer condyle of the humerus ; it grows very fleshy and thick
as it descends, and about the middle of the fore-arm divides
into three slips. The tendons pass under the annular liga-
ment, along the metacarpal bones, and first, phalanx of the
fingers, where they are joined by those of the interossei and
lumbricales, and form a tendinous sheath, which surrounds the
back of all the fingers. It extends the fingers.

Extensor minimi digiti.—Auricularis.—The little finger
is raised by this muscle, as in picking the ear. It arises from
the outer condyle of the humerus, and accompanies the ex-
tensor digitorum communis, passes under the annular ligament
in a channel peculiar to it, and is inserted into the secend
joint of the little finger.

Extensor carpi ulnaris.—Ulnarisextemus, Cubito super,
metacarpeus.—Arises from the external tubercle of the hume-
rus, and proceeds along the ulnar edge of the arm, to be af-
fixed tendinous into the outside of the lower head of the
metacarpal bone of the little finger. Its use is to extend
the carpus.

Flexor carpi ulnaris.—Ulnaris interims. Cublto-carpeus.
—This muscle arises tendinous from the inner condyle of the
03 humeri, and fleshy from the olecranon; it proceeds fleshy
along the lower edge of the arm; about the middle it be-
 
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