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Science - Human Reproductive System

Human Reproductive System

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Human Reproductive System

The reproductive system is a system of organs within a person which work together for the purpose of reproduction

Female Reproductive Organs

The following are the organs in the female reproductive system together with their functions
Female Reproductive System
  1. Ovaries - the two ovaries produce ova (ovum in singular). The ovum is the female reproductive cell. The two ovaries alternate in the production of ova.
  2. Oviduct - The two oviducts allow fertilization to take place. It is also known as the fallopian tube
  3. Uterus - This is the place where development of the foetus take place. The uterus is alternatively known as the womb. Foetus is the unborn offspring of an animal that develops from an embryo
  4. Cervix - This is the opening to the uterus. It is a muscular ring at the end of the uterus
  5. Vagina - This allows passage of foetus out during birth. During sexual intercourse, sperms are deposited in the vagina. It is also called the birth canal

Male Reproductive Organs

The following are the organs in the male reproductive system together with their functions
Male Reproductive System
  1. Testis - The two testis produce sperms. Sperms are the male reproductive cells
  2. Epididymis - This is where the sperms are stored after production by the testis
  3. Sperm duct - This allows passage of sperms from the testis to the urethra
  4. Penis - This deposits sperms into the vagina during the sexual intercourse
  5. Urethra - It allows passage of the sperms from the sperm duct to the vagina

Adolescence

Adolescence is a stage of transition of changing from childhood to adulthood.
It is at this stage that boys and girls become sexually mature, and they can reproduce.
The stage is also know as puberty.
There are both physical and emotional changes that occur in adolescents at this stage.
Physical changes affect the body while emotional changes affect the behaviour.

Physical Changes in Boys during Adolescence

  • They increase in size and weight as they grow
  • Their voice break and becomes deep
  • They grow pubic hair in the groin, armpit and around the chest
  • They start producing mature sperms
  • Their chests broaden
  • Their genital organs increase in size
  • They experience wet dreams where a boy finds in the morning that sperm has been deposited after being released during sleep
  • They develop pimples, though not all

Physical Changes in Girls during Adolescence

  • Girls start experiencing menstrual flow. This happens after the fracture of an ovum after ovulation. It is released as blood discharge through the vagina
  • The ovaries become active and produce ovum every 28 days
  • There may be pimples on their faces
  • Hair grows around pubic area and under armpits
  • Breasts start appearing and enlarging
  • Their hips grow and broaden

Emotional Changes in both Boys and Girls during Adolescence

  • Attraction to the opposite sex
  • Mood changes from time to time
  • Girls at time become embarrassed due to the increased breast size
  • Boys become a little more hostile
  • Attention seeking so as to get noticed
  • at time, they become rude, wild and uncontrollable

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