538 LABORATORY MANUAL OF HUMAN ANATOMY 



FIG. 289. 



Annulus urethralis 



Pars prostatica urethrae 



Pars membranacea urethrae 



Pars cavernosa urethrae 



Glans penis - 



Orificium urethrae externunr 



Orista urethralis 

 -Colliculus seminalis 

 Utriculus prostaticus 

 --Opening of the ductus ejaculatorius 

 Crista urethralis 



Bulbus urethrae 

 ~Crus penis 



"Opening of the ductus excre- 



torius glandulae bulbo- 



urethralis 



Septum penis 



Arteria prqfunda penis 

 Tunica albuginea 

 Corpus cavernosum penis 



Corpus cavernosum urethrae 

 -=*> Lacunae urethrales (Morgagnii) 



Fossa navicularis urethrae 



(Morgagnii) 



The male urethra, urethra virilis, laid open by a sagittal incision beside the septum penis. 

 (After Toldt, Anat. Atlas, Wien, 1900, 2 Aufl., p. 490, Fig. 835.)' 



