Mouse Anatomy Atlas
   
#1. Male reproductive tract- testes, epididymides, and most of the ductus deferens have been removed, ventral view, cranial is toward the top of the picture
 
     
#2. Male reproductive tract- dorsal view
 
     
#3 Male reproductive tract- cranio-lateral view of the VP and LP which are adjacent to each other. To separate the VP and LP, gently dissect the loose connective tissue between the VP and LP. The boundary is sometimes clear, but not always. The way to tell where the true s is between these two lobes is to follow the proximal ducts to the urethra. The VP enters the urethra ventrally and the LP proximal duct enters the urethra dorsally.
 
     
#4. Male reproductive tract- cranio-lateral view of the VP and LP in which some separation between the two lobes has been achieved by severing the blood vessel that runs along the urethra between them (see #3).
 
     
#5. Male reproductive tract- cranio-lateral view of the VP and LP in which the two lobes have been dissected apart and pinned to show the small expanse of urethra (*) that exists between VP and LP proximal ducts.
 
     

#6 Ventral view of the male reproductive tract with the bladder removed. Transillumination shows clearly the ducts of the CG and AG. The dark area indicated by the * is the cut end of the bladder.
 
     
#7 Same view as in #6 with illumination from above. The cut end of the bladder is circled in red.
 
     

#8. Male reproductive tract with the bladder removed- dorsal view.
To remove the seminal vesicles (SV) carefully separate the CG from the SV along the edge indicated in #7 by small red arrows. Turn the specimen to its dorsal side and carefully separate the ducts of the DLP from the SV (green arrows in #8). Do not puncture the wall of the SV as the thick, sticky secretion from the SV will interfere with the dissection.
 
     
#9 Male reproductive tract with bladder and SV removed, ventral view.
 
     
#10 Male reproductive tract with bladder and SV removed, dorsal view. To remove the AG and the proximal portions of the ductus deferens, dissect along the border of the AG and the DLP and CG on each side (blue arrows in #10). Cut at the base of the ductus deferens.
 
     
#11 Male reproductive tract with bladder, SV, and AG removed, i.e. only the prostatic lobes remaining ventral view.
 
     
#12 Male reproductive tract with bladder, SV, and AG removed, i.e. only the prostatic lobes remaining, dorsal view.
To lay out the prostate so that all three lobes are identifiable, first separate the edge of the DLP from the urethra (red arrows in #12). Trim off most of the urethra( the blue line in #12). Also separate the two lobes of the VP (blue line in #11) Each lobe will have two closely spaced main ducts. Cut through the urethra (green line in #12).
 
     
#13 Bisected prostate lateral view
 
     
#14 Bisected prostate lateral medial view
To isolate individual prostatic lobes cut the VP and the CG at the base of their proximal ducts. Separate the LP from the DP by tracing the LP proximal ducts to the urethra and cutting them.
 
     
#15 Ventral prostate
 
     
#16 Partially dissected ventral prostate
 
     
#17 Totally dissected ventral prostate
 
       
#18 Dorsal prostate dissection sequence
 
     
#19 Dorsal prostate dissection sequence
 
     
#20 Dorsal prostate dissection sequence
 
     
#21 Lateral prostate
 
     
#22 Lateral prostate
 
     
#23 Coagulating gland
 
     
#24 Coagulating gland
 
     
 

#25 Coagulating gland