what is coitus? explain its process. (Rajasthan bord question)
Answers
Coitus interruptus, also known as withdrawal or the pull-out method, is a method of birth control in which a man, during sexual intercourse, withdraws his penis from a woman's vagina prior to orgasm (and ejaculation) and then directs his ejaculate (semen) away from the vagina in an effort to avoid insemination.
Answer:
Coitus is also known as sexual intercourse or copulation.
Explanation:
It is a reproductive act in which the male reproductive organ enters the female reproductive tract. If the reproductive act is complete, sperm cells are passed from the male body into the female, in the process fertilisation the female egg and forming a new organism. In some vertebrates, such as fish, eggs are laid outside of the body and fertilised externally. In the human male, the penis serves both excretory and reproductive functions. During intercourse, the blood flow is temporarily increased and trapped in the penis so that it becomes enlarged and elevated, a condition known as erction. Erction changes the normally soft and flaccid organ to one of greater size and rigidity to permit easier penetration into the reproductive tract of the female. Intercourse terminates in orgasm, a process in which the male expels semen containing sperm cells, which may unite with and fertilise the female egg, and a seminal plasma that contains cell nutrients, water, salts, and metabolites into the female’s vaginal canal. In the female reproductive system, an external opening leads to the vagina, which in turn communicates with the uterus (or womb), a thick-walled, pear-shaped organ where the sperm fertilises the egg and where the foetus develops.