abnormal urethra morphology abnormal male urethra morphology any structural anomaly of the male fibromuscular tubular canal which extends from the internal urethral orifice in the urinary bladder to the external urethral orifice at the tip of the penis and provides an exit for urine as well as semen during ejaculation; the male urethra is longer than the urethra of females and comprises three major portions, the (i) prostatic, (ii) membranous (aka intermediate), and (iii) cavernous (aka spongy or penile) abnormal urethra masculina morphology csmith MP:0011776 abnormal urethra virilis morphology MPheno.ontology 2012-11-15T02:41:24Z