524 



LABORATORY MANUAL OF HUMAN ANATOMY 



depth of the fossa, and expose the middle puboprostatic ligament 

 (Lig. puboprostaticum medium) (0. T. anterior true ligament 

 of bladder) ; in the female it is called the middle pubovesical 

 ligament (Lig. pubovesicale medium). 



Where are the pubovesical muscles (Mm. pubovesicales) to 

 be found, and from what are they derived? What relations do 

 the vessels and nerves of the pelvis bear to the pelvic fascia? 



Rectum (Intestinum rectum). (Vide Spalteholz, Fig. 575.) 



Determine the extent, general direction, and peritoneal rela- 

 tions of the rectum. Supplement the dissection by the use of 



FIG. 279. 



Ureter dexter 

 Ductus deferens 



Fundus vesicae VwCv 



Vesicula seminalis 

 dextra 



Intestinum. 

 rectum 



Prostata U 



M. sphincter, 

 ani ex tern us 



Lig. umbilicale medium 



Vertex vesicae 



Corpus vesicae 



Lig. puboprostaticum (pubo- 

 / vesicale) medium 



Symphysis ossium 

 pubis 



M. pubovesicalis 

 M. obturator internus 

 Fascia diaphragmatis pelvis superior 



. levator ani 

 Ramus inferior ossis ischii 



The stratum externum of the tunica muscularis of the urinary bladder, and the relations of the 

 seminal vesicles and prostate to the bladder and rectum. Seen from the right side. (The prostate is 

 abnormally enlarged.) (After Toldt, Anat. Atlas, Wien, 1900, 2 Aufl., p. 481, Fig. 812.) 



models and cross-sections. Compare the external markings of 

 the rectum with those of the colon, noting carefully any differ- 

 ences. Establish the position of the following : 



(a) Flexures: 



(aa) Sacral flexure (flexura sacralis). 



(ab) Perineal flexure (flexura perinealis). 



(b) Ampulla of rectum (ampulla recti). 



