Penis
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The penis is a male sex organ located on the outside of the body. It is used for urination (getting rid of liquid waste from bladder) and sexual reproduction.
The main sexual function of the penis is to be inserted into the woman's vagina and deliver semen to cause pregnancy.
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[change] Erection and ejaculation
A penis can become erect if a man is sexually aroused. In an erection, the penis gets filled with blood. The blood makes the penis become longer, thicker and harder. Men can ejaculate in two ways. Men can ejaculate during sexual intercourse or by masturbation.
In sexual intercourse, the man's penis is put into the woman's vagina. He will then ejaculate; the sperm in his semen can cause a woman to get pregnant.
In masturbation, men can excite their own penis and other sensitive areas of their body, such as the scrotum, by rubbing the genital area. Excitement usually leads to climax, a very good feeling. During climax, semen moves through the urethra and comes out of the hole at the tip of the penis. A man must have gone through puberty before he can ejaculate.
Semen is the liquid from the prostate and may or may not contain sperm cells from the testicles when it ejaculates from the penis.
[change] Penis size in humans
The length and thickness of the penis is different for every man. The size of a soft penis (not erected) is much smaller than when it is erect. Some penises grow more when they get hard than other penises. In most cases, whether a penis is big or small, it can still be used for sex. It averages out to be around 3 to 6 inches long (flaccid).
[change] Circumcision
The foreskin is a fold of skin that covers the end of the penis. Cutting off the foreskin is called circumcision. The foreskin is connected to the head of the penis. During circumcision, the foreskin is removed from the penis.
Circumsision is usually performed on infant males for religious or cultural reasons.
Some men have the foreskin cut off when they are adults because they have problems with their foreskin. Some men have the foreskin cut off because they want to change how their penis looks.
In some religions, babies and young boys have their foreskin cut off. This is expected in Islam and required Judaism.[1][2] It is not required according to Christianity, but it is allowed and is quite common among some Christians. In the Jewish religion baby boys are required to have their foreskin removed. There is a small movement within the Jewish community to replace Bris Milahs (ritual circumcision) with "Bris Shaloms" or other non-invasive welcoming ceremonies.
[change] References
- ↑ Circumcision. American-Israeli Cooperative Enterprise. Retrieved on 3 October 2006.
- ↑ Beidelman, T. (1987). "CIRCUMCISION". The Encyclopedia of religion Volume 3. Ed. Mircea Eliade. New York, NY: Macmillan Publishers. 511–514. Template:LCCN ISBN 978-0-02-909480-8. Retrieved on 2006-10-03.
| Human reproductive system | ||
|---|---|---|
| Female anatomy | Cervix – Clitoris – Clitoral hood – Fallopian tubes – Bartholin's glands – Gräfenberg spot (G-spot) – Hymen – Labia – Mammary glands – Ovaries – Skene's glands – Urethra – Uterus – Vagina – Vulva |  |
| Female physiology | Ejaculation – Orgasm – Ovum | |
| Male anatomy | Bulbourethral glands – Corpus cavernosum – Ejaculatory ducts – Epididymis – Foreskin – Frenulum – Glans penis – Penis – Prostate – Rete testis – Scrotum – Seminal vesicles – Seminiferous tubules – Sertoli cell – Spermatic cord – Testicles (testes) – Urethra – Vasa deferentia | |
| Male physiology | Ejaculation – Erection – Orgasm – Semen – Sperm – Testosterone | |
