Guys are very different from girls. For example, most guys have short hair and most girls have long hair. Guys are rougher whereas girls are more gentle. These are some of the character differences between guys and girls. Guys and girls also do have body differences don't they?

Guys and girls have different reproductive systems. Reproductive systems are located at the lower part of the body, the part where you pee. Guys and girls also have different sex cells which are produced in the reproductive system.

Male Reproductive System



Use of sexual organs

Sex glands: produce fluids in which the sperms ‘swim’. The mixture of fluids and sperms is called semen.

Testis: produce sperms and male sex hormones

Sperm duct: carries sperms to penis

Penis: where semen leaves the body and is deposited in the vagina of the female

Scrotum: a bag of skin which holds the testes outside the body

Urethra: a tube which carries sperms and urine at different times

Interesting note* When the body is cold, the scrotum shrinks and becomes tighter to hold in body heat. When it's warm, the scrotum becomes larger and more floppy to get rid of extra heat.

Male Sex Cell

Male Sex Cell

Sperm – It is the smallest cell in the human body. Each sperm has a tail (used for swimming), body and a head (nucleus that contain chromosomes).

Female Reproductive System


Use of sexual organs:

Uterus: where the baby grows during pregnancy

Fallopian Tube: connects the ovary to the uterus
Collects eggs released from the ovary and carries them to the uterus

Cervix: the narrow opening of the uterus. It becomes wider during delivery

Vagina: muscular tube where sperms from the penis are deposited. It also becomes wider during delivery

Female Sex Cell


Ovum – It is the largest cell in the human body. It is 10 times larger than the sperm but it cannot move by itself.

In the human reproductive process, two kinds of sex cells are involved. The sperm, and, the egg or ovum meet in the female's reproductive system to create a new individual. Both the male and female reproductive system are essential for reproduction.
The sex cells(both the sperm and the ovum) fuse togther to form a offspring. This is how babies are formed.

Why do we have all these "strange things"?

All living things reproduce. Reproduction — the process by which organisms make more organisms like themselves — is one of the things that sets living things apart from nonliving things. Humans, like other organisms, pass certain characteristics of themselves to the next generation through their genes, the special carriers of human traits. The genes parents pass on to their offspring are what make kids similar to others in their family, but they're also what make each child unique. These genes come from the father's sperm and the mother's egg, which are produced by the male and female reproductive systems.

Well this is it! We hope through reading this post you will know more about your very own body!