The Science of the Human Body: Reproductive Anatomy Explained

The human body is made up of many different systems that work together to keep us alive and healthy.

One of these is the reproductive system, which is responsible for creating new life.

In males, the penis is an external organ that is part of both the reproductive and urinary systems.

It has two main functions: passing urine out of the body and, in adults, playing a role in reproduction.

The penis is made up of several types of tissue, including erectile tissue, which can fill with blood.

When the erectile tissue fills with blood, the penis becomes firm, which is a normal biological process.

At the tip of the penis is a sensitive area called the glans, which is covered by a fold of skin called the foreskin in some males.

In many cultures and for medical reasons, the foreskin is sometimes removed in a procedure called circumcision.

The urethra is a tube that runs through the penis and carries both urine and semen, though not at the same time.

During reproduction, sperm travels from the testes, through the urethra, and out of the body.

The size and shape of the penis vary naturally from person to person, and this is completely normal.

Medical professionals study the penis carefully because, like all body parts, it can be affected by illness or injury.

Good hygiene is important for keeping this part of the body healthy and free from infection.

Learning about the body in an open and factual way helps people understand their own health better.

Understanding human anatomy is an important part of science education at school and university.