OBLIQUUS. 
braced down on the lalate organs, and it is rendered 
a litle convex towards the t When the limb is ex- 
tended and rolled outwards, jhe aponeurofis is drawn as 
much as poffible downwards, and rendered tenfe: by 
‘moral artery and vein, and the great abforbent trunks of the 
lower limb, pafs. For a more aaa) account of the cru- 
ral arch, ies the article Hernia, under the divifion Crue 
ral hernia: ia for the attachment of the fafcia lata to 
it, fee Fas 
hen che ‘aponeurofi approaches the pubes, it fepa- 
rates into two portions, which conftitute the pillars or 
columns of the abdominal ring. e upper or inner of 
thefe is fixed to the fymphyfis pubis, decuflating with 
the correfponding one of the oppofite fide: the lower or 
outer (which is mdeed the above-mentioned ligament of 
Poupart, or the crural arch) is attached to the fpine and 
crifta of the bone. The feparation of thefe tendinous 
oo leaves a triangular fpace, called the abdomina 
ing, or ring of the external oblique mufcle. e pubes 
ea titiies the bafe of the oo the two pillars form 
its fides; and the apex is - part at which thefe fepa- 
rate from each other. not ioe pointed ; fince 
fome tranf{verfe fibres, which conne& the two columns to- 
ards and ou 
wards ; the cr part of it pointing towards the {pine 
of the iliu is part is often mentioned under the nam 
of the external angle of th e of the tri- 
e other internal, are continued from the apex 
obliquely downwards and inwards to the bafis. 
The fpermatic chord and round ligament t of the uterus, 
and the ese oi inguinal hernia or bubonocele, pafs 
through this o 
The ean rele abdominis (obliquus afcendens, petit 
oblique, ileo-abdominien) is {maller than the former, under 
The infer 
mit, conftitu uting 
male the round 
The ck edge i is connected by an aponeurofis, common 
it with t ffimus dorfi, to 
The upper 
1t Ww and lati 
the {pines the lumbar vertebra and facrum. 
goftal intervals, with the endl ner mufcles, At 
the edge of the rectus it becomes a gral and divides 
into two layers; an interior going in front of that mufcle, 
and united to the aponeurofis of the sbiisans ects 3 an 
a pofterior paffing behind it, fixed to the cartilage of the 
firft falfe, and the laft true rib, as high as the entiform ap- 
pendix, and confounded with the aponeurefi of the tranf- 
verfus. The front edge of the mufcle is fixed to the whole 
length of the linea alba. 
The obliquus internus is compofed of a pofterior and an 
anterior aponeurofis, and of mufcular fibres between thefe. 
The former is attached to the back of the crifta ilii, and to 
the {pines of the facrum and lumbar vertebre. The mufcu- 
lar fibres arife from the pofterior aponeurofis, from the crifla 
ili, and from the crural arch, and are, 
directed obliquely upwards and forwards ; 
however approach to the horizontal direGtion, and the very 
loweft go a little dowawards. They all end in front ina 
broad aponeurofis, which commences farther The ap on the 
abdomen than that of the obliquus externus. This aponeu- 
rofis, at firit fimple, divides at the edge of the ae into 
two layers, an anterior, which becomes pes gee! con- 
nected to that of the obliquus externus; and a 
at the linea a e lower fourth part of the aponeurofis 
goes entirely in front of the rectus; and its inferior end is 
xed to the pu 
Tranfverfus abdomni (tran{verfalis, e pnuarir cane ae 
This, like the preceding, is a very broad and thin mufcle, 
much broader ee than behind, placed ae the two ob- 
: the abdo 
it is peste in aia its whole nie by the obliquus in- 
ternus; the common mafs of the facro-lumbalis and longif- 
fimus dorfi, the ag aren inferior potticus, and the latiffimus 
d. The internal furface 
bre. 
fixed to the inner edge of the crifta ili, the outer 
If of the crural arch. From the latter it is ftretched, juft 
behind the obliquus internus to the pubes ; indeed the 
two mufcles are peices fo clofely connected, that they can 
1 Al<; h 
NaALQLy OC Ie 
aoe terminates in ie whole length i the — alba. 
The vat is compofe d or apo- 
an noone! and potteri 
mufcular ice, between th 
terior -aponeurli pee "of three portions; a 
fixed to the tranfverfe pro- 
aaa an 
cn j 
erratus inferior, &c. 
