Ancient_Skirt_8828 t1_j6hi319 wrote on January 30, 2023 at 10:45 AM Reply to comment by ADutchExpression in eli5: How do erections work? Do they sometimes happen unintentionally? by [deleted] You also have “valves” that close to stop the blood flowing straight back out again. Permalink Parent 1
Ancient_Skirt_8828 t1_j6hi319 wrote
Reply to comment by ADutchExpression in eli5: How do erections work? Do they sometimes happen unintentionally? by [deleted]
You also have “valves” that close to stop the blood flowing straight back out again.