Question

.why does penis erection occurs​

Answer 1

During sexual arousal, nerve messages begin to stimulate the penis. Impulses from the brain and local nerves cause the muscles of the corpora cavernosa to relax, allowing blood to flow in and fill the open spaces. The blood creates pressure in the corpora cavernosa, making the penis expand and creating an erection.

Answer 2

during sexual arousal nerve messages begin to stimulate the penis impulses from the brain local nerves cause the muscles of the corpora cavernosa to relax allowing blood to flow in and fill the Open Spaces the blood creates pressure in the corpora cavernosa making the penis expand and creating an erection