Human Body Systems

Reproductive System

Human Reproductive System

Living things create other living things in the process of reproduction . Reproduction generally means the action or process of making a copy of something. Reproduction is necessary for continuity of humans. Human beings reproduce through sexual reproduction. The reproductive system are the primary sexual characteristics . We already have them when we are born and they are different for male and female.

Functions of the Reproductive System

  1. To manufacture cells that enable reproduction.
  2. Female - to protect and nourish the offspring until birth.
  3. Male - to produce and deposit sperm.

Diagrams Of the Human Reproductive System

Some additional information

Ovulation and Menstruation

Once every month or so, a woman’s ovary releases an egg cell. This process, known as ovulation, usually occurs about 14 days after the start of the woman’s last menstrual period, if she has a normal 28-day menstrual cycle. Approximately every 28 days, the pituitary gland releases a hormone that stimulates some of the ova to develop and grow. One ovum is released and it passes through the fallopian tube into the uterus. Hormones produced by the ovaries prepare the uterus to receive the ovum. The lining of the uterus, called the endometrium, and unfertilized ova are shed each cycle through the process of menstruation. If the ovum is fertilized by sperm, it attaches to the endometrium and the fetus develops.

Human Reproduction

The picture to the left shows the cycle of a human, from fertilization to adult.