CHAPTER V. 

 DISSECTION OF THE PERINEUM. 



Before the 

 dissection 

 pass cathe- 

 ter. 



Place the 

 body in 

 position. 



and fasten 

 upwards 



the lex*. 



Pass a staff. 



Stitch up 



the scrotum 



The surface 

 limits. 



SECTION I. 



PERINEUM OF THE MALE. 



Directions. The perineum is allotted to the dissector of the 

 abdomen, and its examination is made during the first three days 

 that the body is in the dissecting-room. Before the body is placed 

 in the position suited for the dissection, the student should practise 

 passing the catheter along the urethra. 



Position of the body. For the dissection of the perineum the body 

 is fixed in the following manner : While it lies on the back it is 

 drawn down to the end of the dissecting table till the buttocks 

 project slightly over the edge, and a block is placed beneath the 

 pelvis to raise the perineum to a convenient height. The knees 

 having been bent, the thighs are to be raised upon the trunk, and the 

 limbs fastened with a cord in their bent position. For this purpose 

 make one or two turns with the cord round one bent knee (say the 

 right), carry the cord beneath the table, and, encircling the opposite 

 limb in the same manner, fasten it finally round the right knee. 



Further directions. "When the position has been arranged, the 

 student, standing on the left side of the body, should pass a well-oiled 

 staff into the bladder. This should be done by holding the penis 

 with the left hand and guiding the staff with the right. When the 

 point of the instrument passes below the pubic arch a resistance will 

 be felt which is caused by the triangular ligament. The staff, with 

 the head kept square and in the middle line, should then be depressed 

 and passed on, but without force. If necessary, the student may 

 guide the point through the urethra under the pubic arch by the left 

 forefinger passed into the rectum. The staff should now be fixed in 

 position, with the point in the bladder, by tieing the handle firmly 

 over the front of the lower part of the abdomen to the cords on either 

 side of the body. The scrotum should be drawn well up away from 

 the perineum and fastened to the staff above the penis by a stitch 

 passed through its extremity arid tied round the staff. A small 

 quantity of tow should then be passed into the rectum, but not so as 

 to distend it, and the anus neatly stitched up. 



Superficial limits and marking. The perineal space in the male is 



