The Reproductive System Flashcards
Give the function of the testi
Produces sperm.
Located in a sac outside of the body at lower than 37 degrees Celsius
What is the function of scrotum
This is the sac that the sperm are held in
What is the function of the penis
Sperm pass through the the urethra in the penis and are passed out of the body of the male into the female by the penis
What is the function of the sperm duct
Carries sperm from testis to penis
What is the function of the ovary
Produces eggs
Produces female hormone
What is the function of the Fallopian tube
Carries egg from ovary to the womb
Fertilisation takes place here
What is the function of the uterus
Holds baby during pregnancy
What is the function of the cervix
Entrance to the womb
What is the function of the vagina
Holds penis during intercourse and allows childbirth
Explain puberty
Time in a persons life when they become sexually mature ie. Physically able to have children
When does puberty occur in boys
Around age 12-13
Give some sexual characteristics that develop in boys
Sperm are produced in testes
Penis and testicles increase in size
Interest in girls
Give some physical characteristics that develop in boys
Growth of pubic and body hair. Sudden growth spurt Chest deepens Voice deepens as larynx widens Spots may appear on the skin
When does puberty begin in girls
11-12 years of age
Give some sexual characteristics that develop for girls
Ovaries and womb increase in size.
The menstrual cycle begins
Interest in boys
Give some physical characteristics that develop for girls
Breasts grow. Hips widen Pubic hair Growth spurt Spots may appear on skin
What occurs on days 1-5 on the menstrual cycle
Menstruation occurs ie. A period occurs
What happens day 6-13 of the menstrual cycle
A new lining develops
Egg continues o develop in the ovary
What happens day 14 of the menstrual cycle
Egg is released from ovary this is called ovulation
What happens on day 15-28 on the menstrual cycle
Uterus becomes thicker and rich in blood vessels.
If egg is not needed the lining of the womb is shed and that brings us to start a new cycle
Explain fertile period
The days in the menstrual cycle when a female is most likely to become pregnant days 11-16
Explain the path of the sperm
The man places his erect penis into the vagina
Ejaculation occurs releasing semen and sperm.
The sperm swims from the vagina, uterus, Fallopian tube
Explain fertilisation
If an egg is present in Fallopian tube the egg joins the soerm cell. Fertilisation is the joining of the male sex cell and the female sex cell
Explain how the cells get from fertilisation to pregnant
The fertilised egg divides and the group of cells move down to the uterus
The group of cells bury themselves into the lining of the womb and this is called implantation
Once implantation takes place the woman is pregnant
What is the fertilised egg called
Zygote
Explain amnion and amniotic fluid
Amnion is the membrane which surrounds the baby during pregnancy and the membrane fills up with amiotic fluid which acts as a shock absorber
What is he function of the placenta
Passes oxygen and food from mothers blood to foetus
Passes waste products ( urea, salt, CO2) from baby to mother
Also passes harmful substances like alcohol to baby from mother
Explain umbilical chord
Connects placenta to the baby at the belly button
Explain how a baby is born
Muscles in the uterus contract. These contractions are called labour
Contractions cause amnion to burst “breaking of the waters”
Cervix widens during contractions, baby is pushed head first out of the uterus into the vagina.
The umbilical chord is clamped and cut
Explain afterbirth
Uterus contracts after baby is born
Placenta and remains of unmilitary chords are pushed out of the vagina.
Explain reproduction
Production of new individuals, humans produce sexually
Explain gametes
Sex cells
Explain contraception
Prevention of fertilisation or pregnancy
Give examples of methods of contraception to prevent fertilisation
Contraceptive pill
Condom
Chemical creams, kill sperm
Medical operations
Give examples of contraception that prevent implantation
Pills prevent pregnancy and stop embryo at aching to uterus
Plastic coil inserted into uterus.