. ▁ ▁C ities ▁ ▁Notes ▁▁ ▁Category : Mad ras ▁Pres iden cy ▁ ▁Category : T amil ▁society ▁ ▁Category : D em ographic ▁history ▁of ▁India ▁Category : So cial ▁history ▁of ▁T amil ▁N adu ▁Category : So cial ▁history ▁of ▁K arn ata ka <0x0A> </s> ▁The ▁Pro static ▁P lex us ▁is ▁continued ▁from ▁the ▁lower ▁part ▁of ▁the ▁pel vic ▁p lex us . ▁It ▁lies ▁within ▁the ▁fas cial ▁shell ▁of ▁the ▁pro state . ▁ ▁The ▁n erves ▁compos ing ▁it ▁are ▁of ▁large ▁size . ▁ ▁They ▁are ▁distributed ▁to ▁the ▁pro state ▁sem inal ▁ves icle ▁and ▁the ▁corpor a ▁ca vern osa ▁of ▁the ▁pen is ▁and ▁u re th ra . ▁ ▁The ▁n erves ▁supp lying ▁the ▁corpor a ▁ca vern osa ▁consist ▁of ▁two ▁sets , ▁the ▁less er ▁and ▁greater ▁ca vern ous ▁n erves , ▁which ▁arise ▁from ▁the ▁for ep art ▁of ▁the ▁pro static ▁p lex us , ▁and , ▁after ▁joining ▁with ▁branches ▁from ▁the ▁p ud end al ▁n erve , ▁pass ▁forward ▁beneath ▁the ▁pub ic ▁arch . ▁ ▁In j ury ▁to ▁the ▁pro static ▁p lex us ▁( d uring ▁pro static ▁res ection ▁for ▁example ) ▁is ▁highly ▁likely ▁to ▁cause ▁ere ct ile ▁d ys function . ▁ ▁It ▁is ▁because ▁of ▁this ▁relationship ▁that ▁sur ge ons ▁are ▁careful ▁to ▁maintain ▁the ▁integrity ▁of ▁the ▁pro static ▁fas cial ▁shell ▁so ▁as ▁to ▁not ▁interrupt ▁the