Chapter 26.3, Problem 8QC

Summary Introduction

To review:

The two stages of ejaculation and the events that occur during these stages.

Introduction:

The process by which the male reproductive organ, penis, enters the female reproductive organ, vagina, is known as copulation. In order to enter the vagina, the male penis enlarges and stiffens. This results in the erection of the penis and the ejaculation of semen.