Lab 16 - Image 6

Internal pelvic dissection of a cow. 1, sacrosciatic ligament; 2, sciatic nerve (exposed by enlargement of the greater sciatic foramen); 3, L6 branch to the sciatic n.; 4, S1 branch to the sciatic n.; 5, S2 branch to the sciatic n.; 6, lesser sciatic foramen; 7, caudal gluteal v. entering the foramen (along with the caudal gluteal a. which is covered by the vein); 8, internal iliac vessels; 9, internal pudendal vessels; asterisk, pudendal nerve; 10, coccygeus m.; 11, levator ani m.; 12, internal part of the external obturator muscle; 13, obturator n.; 14, pubic bone near the pelvic symphysis; 15, external iliac vein.