Humans are able to do sexual activity at several time, means that both a male and a female are need to reproduce with the help of reproductive organs. Each specific organ capable of producing specific cells that need to maintain day by day.
If men want to make sexual activity with the partner then you should care about reproductive organs with proper manner.

Male Reproductive Organs

Men and woman conjugate to each other with the help of reproductive organs, and then sexual intercourse can lead to the reproduction of human life.

For men, the external reproductive organs include:

Penis: The shape of penis like a cylinder, muscular organ fills with blood during libido, thus making sexual intercourse possible with the partner.

Scrotum: This pouch, below the penis and encases the testes, or testicles properly.

Testicles: Placed inside scrotum, Sphere shaped organs produce sperm cells and testosterone.

Humans are born with their genitals or sexual organs; they don’t begin to work properly until puberty. The average age of puberty is 12 years, it is medically prove.

In this age, hormones change and create lasting changes as “a boy becomes a man.” This process has many effects on the men body, such as muscular development, growth in structure, and hair growth on the genitals and face (beard).

During puberty men is able to reproduce, because in this situation a man has fully-functioning sexual organs and is capable to baby born.

The male testes produce sperm, which are released at sexual climax, and give ejaculation, it is also a part of this process. The sperm leaves from the penis into cells of female where reproductive system works to create a new human.

There are millions of sperms cells contained in a single ejaculation by men, but it only one sperm cell to fertilize a woman’s egg inside body.

According to ages, sexual activity typically less as compare to starting times. Typical sexual abnormalities in men include:

- Premature ejaculation
- Erectile dysfunction
- Sterility
- Lowered testosterone
- Low sperm count

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Sagittal Cross-section

It is a soft, spongy tissue that facilitates sexual reproduction. It is located at surrounds the urethra and is a part of the male anatomy.

When men feel arousal then physiologic play a role and fill with blood to make the penis erect, and itself remains spongy to protect the urethra from closing during penetration. Because semen can travel down to come out from penis during ejaculation.

Now, we will understand, how to penis work during sexual activity:

Sexual stimulation always begins in the brain and the brain sends signals to nerves within the penis, after that penis get erect.

This signals the upper part of the penis, which is two cylinder-like columns of tissue, fill with blood. This process causes the penis to become erect and able to take sexual activity with the partner.

To increasing stimulation, a man becomes feeling aroused and during this time, the penises expand more and get herded.

During penetration the Cowper’s gland releases a liquid or lubricant that provides smooth penetration and also prepares semen’s path.

After some moment’s man become more aggressive and ejaculate, the testes release sperm during last penetration. In other words, when the man climaxes, the semen down throughout the tip of the penis easily.

Vessels

There are many blood vessels in human's body including male pelvic region. Many supply the male reproductive organs as well as lower body parts.

Arteries and veins are supply oxygen involve blood to the male reproductive organs.

Some of main vessels that supplies oxygenated blood to the penis internally. Without it, a man never able to have sex with someone because he do not have erection.

Vas Deferens

Vas deferens, is a male anatomical part, there are two tubes and they ejaculate sperm, with the help of testicles. Each deferens is a tube that is near about 30 centimetres in length and covered by smooth muscles.

Spermatic cord

The scrotum is a part of male genitals and located underneath the penis externally. It is muscular sac that contains and protects the blood vessels, testicles, and part of the sperm cord.