A text-book of clinical anatomy : for students and practitioners . m the ensiform process and fifth, sixth, andseventh costal cartilages; its fibers pass directly downward to be insertedinto the upper surface of the symphysis pubis. Its sheath is formed bythe other abdominal muscles, as given above; namely, in its upper three-fourths by the external oblique and anterior layer of the internal obliqueaponeurosis in front and the posterior layer of the internal oblique andtransversalis behind (Fig. 83). In the lower one-fourth of the lineaalba the sheath is very strong in front, having the aponeu
A text-book of clinical anatomy : for students and practitioners . m the ensiform process and fifth, sixth, andseventh costal cartilages; its fibers pass directly downward to be insertedinto the upper surface of the symphysis pubis. Its sheath is formed bythe other abdominal muscles, as given above; namely, in its upper three-fourths by the external oblique and anterior layer of the internal obliqueaponeurosis in front and the posterior layer of the internal oblique andtransversalis behind (Fig. 83). In the lower one-fourth of the lineaalba the sheath is very strong in front, having the aponeuroses of all threemuscles (external and internal oblique and transversalis), but compara-tively weak behind, consisting only of the transversalis fascia and peri-toneum (see Fig. 88). The Transversalis Fascia.—This layer above the umbilicus isscarcely of sufficient thickness to be called a membrane; below the navelit becomes quite thick and firm, forming an aponeurosis which serves as aposterior covering to the rectus, and takes the place there of the internal. Fig. 75.—Topography of inguinal and femoral hernial regions (superficial layers), Anterior superior spine of ilium. , Inguinal canal, shown in clotted its lower end (external abdominal ring) the spermatic cord is seen to emerge. At itsupper end, corresponding to the dotted circle, is situated the internal abdominal ring (alittle above the middle of Pouparts ligament). , External oblique muscle, the apo-neurosis of which divides to form the external abdominal ring. , Internal obliquemuscle, showing its attachment to outer half of Pouparts ligament; toward the medianline its aponeurosis is shown, uniting with that of the external oblique. F, Femoral , Pouparts ligament. , Internal saphenous vein. , Fossa ovalis, covered bycribriform fascia. ,, Outer layer of iliac fascia forming the falciform border. 229 VEINS OF THE ABDOMINAL WALL. 231 oblique. Between the external and inte
Size: 1368px × 1827px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksub, booksubjecthumananatomy
