Question

Arrange the following steps of copulation in the correct order.

• A. Erection, stimulation, ejaculation, insemination
• B. Stimulation, erection, insemination, ejaculation
• C. Ejaculation, stimulation, insemination, erection
• D. Insemination, stimulation, erection, ejaculation

Answer 1

The correct option is A Erection, stimulation, ejaculation, insemination

Copulation involves the following steps:
The first step of copulation is erection. During this penis gets erected, stiffened. There is rush of blood into sinuses. Following this, penis is inserted into the female vagina.
Insertion of penis inside vagina causes stimulation which helps in releasing lubricating fluid from both penis and vagina.
Ejaculation of sperm happens after stimulation. In this process the penis discharges the sperm.
During insemination, millions of sperms are deposited in vagina. These motile sperm swim rapidly inside the vagina.