The kidney provides no assistance during intercourse, apart from the fact that if you have kidney issues, you will probably find it difficult to get aroused.
There isnt any reproductive function of tbe urethra
The male sex cells provide male gametes during sexual reproduction. Union of male and female gametes is called fertilization.
The Y Chromosome mate ^_^
Fertilization
Testosterone gives rise to male characteristics in animals. Male birds sing. Maturation of male sex glands and facilitation in process of male reproduction is the function of testosterone in the male animal. In female testosterone is present in fraction of the quantity present in male. It helps cellular function in brain, muscle and other body tissues giving vitality to animals both male and female.
fertilization
Different bwtween male and female kidney
The main function of egg cells is to join with male cells for the purpose of reproduction. The shape of the frogs egg cell makes this easier.
The parasympathetic nervous system stinulates erection and the sympathetic nervous system stimulates ejaculation.
Asexual Reproduction
sperm
Internal fertilization of the females eggs through contact with male sperm during mating.