What happens in the plateau phase of heterosexual sexual intercourse?

Question

Quizplus · Accepted Answer

During the plateau phase of heterosexual sexual intercourse, the head of the penis increases in diameter due to vasocongestion. The other options are incorrect. The vaginal opening undergoes rapid dilation during the excitement phase, blood vessels in all parts of the body become constricted during the orgasm phase, vasocongestion in the vaginal tissues increases during the excitement and plateau phase, and the testes may increase in size during the excitement phase.

What Happens in the Plateau Phase of Heterosexual Sexual Intercourse