Reproduction system Flashcards
Reproduction
The process of producing new organisms or offspring
Sexual reproduction
Requires 2 parents to produce offspring
Asexual reproduction
Requires one parent to produce offspring
Puberty
The time when the human body becomes sexually mature
Hormone
A chemical substance produced by the body to control the activity of cells and organs
3 changes in women in puberty
-hips widen
-breasts
- ovaries start to release eggs
3 changes in make puberty
- facial hair
- more muscular
- taller
Urethra
Moves semen from the vas deferents and urine from the bladder out of the body
Testis
Produces sperm and testosterone
Scrotum
Hold testes
Uterus
Holds foetus and expands during pregnancy
Fallopian tube
Collects eggs from ovary and is a site of fertilisation
Cervix
Connects womb and vagina, widen during childbirth
Vaginal
Birth canal, receives penis during sex
Fertilisation.
The fusion of a male and female gametes to form a zygote
Zygote
Fist cell of new organism, resulted from egg and sperm at fertilisation
Menstrual cycle
Series of changes women experience to prepare for pregnancy
Ovulation
The release of eggs from the ovaries
Fertile period
Time in the menstrual cycle when fertilisation are most likely to occur
Contraception
Prevent fertilisation from occurring
STD
Sexually transmitted diseases
Placenta
A mass of tissue that brings nutrients to the foetus and removes waste
Umbilical cord
Connects foetus to placenta, cord is cut at birth
Amniotic sac
Protects the foetus inside the uterus
Amniotic fluid
Liquid around the foetus in The amniotic sac
