DIVISION III. 

 DISSECTIONS. 



THE object of the following Directions is to serve as a short and simple 

 guide for the display of the structure of the body by studeiita in dissecting- 

 rooms, the various organs and their parts being mentioned in the order in 

 which they may best be exposed, and such methods being indicated as may 

 enable each student to obtain the greatest amount of information from his 

 dissection, and at the same time to prevent interference among the neigh- 

 bouring dissectors as much as possible. 



I. GENERAL MANAGEMENT OF THE DISSECTIONS. 



1. In different schools, various plans are pursued in the allotment of 

 portions of the body to different dissectors. According to the method 

 'here recommended, the subject is divided into ten parts, five on each 



side of the body, which are left in connection with one another until the 

 dissection is sufficiently advanced to admit of their being conveniently sepa- 

 rated. The boundaries of the parts are so adjusted, that by their due 

 observance interference between the different dissectors may be as much as 

 possible avoided. 



2. In the case of a male subject, a day is recommended to be set apart 

 at the commencement for the dissection of the perinseum. Thereafter, and 

 in the case of a female subject, immediately on its being brought into the 

 rooms, the subject is to be placed with the face downwards for four days, 

 during which time the posterior regions are to be dissected, in so far as 

 within reach, in the order afterwards mentioned for each part. It is then 

 to be turned and laid upon its back, when a dissection of the various parts 

 in front is to be made. The whole dissection is supposed to be completed 

 within six weeks the time fixed by the Anatomy Act. 



3. The dissection of the head and neck and of the limbs should be begun 

 at once when the subject is laid upon its face ; that of the abdomen as soon 

 as it is turned on the back, and the thorax must not be opened until the 

 upper limbs are removed. The limbs ought not to be removed until the 

 parts which connect them with the trunk have been fully dissected, and an 

 opportunity has been given for the examination of the surgical anatomy of 

 the subclavian artery and the parts concerned in hernia, by the dissectors 

 of the head and the abdomen ; all of which may be accomplished before the 

 tenth day. The further dissection of the several parts may then proceed 

 in accordance with the methods suggested in the special directions. 



