What characteristic of male genitalia is highlighted in medical literature?

The highlighted characteristic of male genitalia that is often emphasized in medical literature is its vascularity. The very vascular nature of male genitalia is primarily due to the extensive blood supply provided by various arteries, which allows for essential functions such as erection. The blood vessels, particularly the corpora cavernosa, play a crucial role in facilitating the engorgement of these tissues during arousal, leading to erection. This vascular characteristic is critical in various medical contexts, including understanding erectile dysfunction and other urological conditions. The rich blood supply also contributes to the overall function and health of the male reproductive system, making this characteristic particularly significant in medical discussions.