Ml >'7J!S OF Till-: .l\Tl-:i;in/; /./!//;>. '277 



2. Opponent of the Thumb. (Fig. 125, v, 10.) 



This v-st i ire of the thick short muscle which bears (he same name in M-m is situated 

 i'!i and within the pr< 'ceding, in a slightly oblique di net ion downwards and 

 outwards. Pale and almost entirely mu-cnlar, it is attached to the posterior ligament 

 of the carpus and the nietacnrpal bone of the thumb. O\\ JHLT tn tin- conformation of this 

 di^it in ( arnivora, tin's muscle cannot act as it does in Man in producing the opposition 

 of tlu> tl.nnili : it only draws it towards the axis of the hand, and is therefore merely an 

 adductor of tin- thumb. 



3. Short Flexor of the Thumb. (Fig. 125, D, 1 1.) 



\ \ ry small muscle, d<-e]>er in colour than the other two, and situated between 

 tin in. the adductor of the index, and the fourth interosseous muscle. It is fixed, by its 

 MI]" rior extremity, in the mass of the posterior carpal ligament, and attached, below, to 

 the internal side of the first phalanx. It is a somewhat extensive flexor of the thumb. 



4. Adductor of the Index. (Fig. 125, D, 12.) 

 Synonym. The adductor of the thumb in Man. 



Elongated, prismatic, compressed on each side, included between the third and 



fourth intcrosseous muscles, and concealed by the tendinous portion of the common 



f the digits, this muscle is attached, superiorly, to the posterior carpal ligament 



with the third intcrosseous muscle. It is fixed, inferiorly, by means of a small flattened 



i. along the superior and internal side of the first phalanx of the index. It is 



I'd as the adductor of the thumb in Man transformed into an adductor of the index, 



in consequence of the atrophy of the fifth digit. 



5. Cutaneous Palmar (Palmaris Brevis^. 



A thick, hemispherical, musculo-adipose body, forming the base of the exterior 

 tubercle placed behind the carpus. It adheres intimately to the skin by its superficial 

 face, and deeply to the aponeurosis covering the muscles of the hand. 



6. Adductor of the Small Digit. (Fig. 125, D, 14.) 



This muscle is superficially situated, external to, and behind the outer metacai pal 

 bone, and is composed of a thick, conical fleshy body, concave on its anterior surface, 

 convex posteriorly, and of a long, thin, and flat tendon, which succeeds the inferior 

 extremity of the muscular portion. 



It is attaehed, l.y tin- superior extremity of the latter, to the pisiform bone; the 

 terminates outside the superior extremity of the first phalanx of the small digit. 

 - muscle separates that digit from the axis of the hand, and is then t,,iv an 

 aMuetor a'nl not an addii'-tor, as its name would indicate. That name has been given 

 a, because the, hand lias Iteen eon.-idored in a state of supination, a position in 

 which it i.- etl'. . lively an adductor in regard to the median plane of the body. If this 

 mime has 1. . n pre.-erved here, it is owing to a desire not to import any now element of 

 confusion into a nomenclature already too complicated. 



7. Short Flexor of Hie Small Digit. (Fig. 125, D, 13.) 



Situated within the preceding, in a slightly oblique direction downwards and out- 

 wards, Haiti ned 1., ton- and In h.iid, triangular, and almost entirely muscular, this muscle 

 <l,ri\ i from a ligament which unites the pisiform l>in- to the mi tmMrpal 



,. and terminates inferiorly on the tendon of the a Id tic-tor, whose congener it i-. 

 It may also concur in the flexion of the small digit, though to a very limited degree. 



8. Opponent of the Small Digit. (Fig. 125, D, 15.) 



A muscle elongated from above downwards, flattened before and behind, situated 



under the perforans tendons, l>ehind the second interoaseous muscle, in a din-en., n 



:y downwards and outwards. It originates from the posterior ligament of the 



: t.-rininat.-s within the MI|M ri.,r e\tn mity of the tirst phalanx .>f the external 



In/;: l.y a .-mall tendon. It acts as an adductor by drawing the small digit towards the 



; the hand. 



