Observations on certain parts of the animal oeconomy . ft tefi:is inclofed in the procefs of the peritoneum. See Fig. 2. The fpermatic vefiTels of the left fide, feen through the peritonseum which covers them, in their defcent through the abdominal mufcles at the The left vas deferens feen through the peritonaeum, in its pafi^age from the mouth of the fac to the pollerior part of the The mouth, or aperture of the procefs of the peritonseum, whereby its mouth or cavity communicates with the general cavity of the 28 PLATE III. belly. This aperture clofes up, and the membran
Observations on certain parts of the animal oeconomy . ft tefi:is inclofed in the procefs of the peritoneum. See Fig. 2. The fpermatic vefiTels of the left fide, feen through the peritonseum which covers them, in their defcent through the abdominal mufcles at the The left vas deferens feen through the peritonaeum, in its pafi^age from the mouth of the fac to the pollerior part of the The mouth, or aperture of the procefs of the peritonseum, whereby its mouth or cavity communicates with the general cavity of the 28 PLATE III. belly. This aperture clofes up, and the membrane becomes fmooth at this place, when the foetus grows a little older j unlefs when thegut falls down after the teftis, and keeps it open: in that cafe itmakes the mouth of the hernial The left epigaftric artery branching upon the infide of the redlus muf-cle, which is here turned downwards and outwards. This arteryis always fituated, as in this figure, on the infide of the mouth ofthe hernial fac, or paffage of the fpermatic veflels. T/ /.?:i^r/>,/c ,M. /P^/..r//vn:/Q/<//i- I 29 ] PLATE IV, A fide view of the pelvis of a young ram, to fhow the right teflicleremaining in the cavity of the abdomen, after the left had come down,but which is removed with that half of the pelvis. The tefticle which lies in the loins is flatter than common, and is onlyattached by one edge, which is piincipally by the epididymis ; there isalfo a ligament pafTmg from the upper part of the common attachmentwhich binds the tellicle to the pofterior part of the abdominal mufcles jthis is analogous to the ligament that attaches the ovarium to the famepart in the female quadruped. The epididymis paifes along the outer or pofterior edge; and at thelower part becomes larger and pendulous, making a little twift uponitfelf where it becomes vas deferens. The vas deferens is a little contorted, and pafles down obliquely overthe pfoas mufcle to the bladder. From the lower end of the tefticle t
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Keywords: ., bookidob, booksubjectanatomy, booksubjectphysiology, bookyear1792
