Page 269 - Primary Six Notes

Uses of each part

Vulva —It receives and guides the penis to the vagina.

It protects and covers the vagina.

Vagina—It receives sperms and passes them to the uterus.

It is a birth canal.

Cervix—It protects the foetus during pregnancy by closing the
cervix.

Ovary —It produces mature ova (eggs)

It produces hormones which controls the sexual cycle.

Ova —These are female reproductive cells. They fuse with

sperms to form a zygote.

Uterus —It is where implantation takes place.

It provides a suitable environment for implantation to take

place.

Oviduct (fallopian tube)—It is where fertilization takes

place. It passes a fertilized egg to the uterus.

The reproductive system of a bull

Uses of each part

Testes

 They produce sperms.

 They produce a hormone responsible for puberty and sexual

desire.

 This hormone is called testosterone.