Reproduction Flashcards
Ovaries
Stores and releases eggs
The Fallopian tubes
The Fallopian tubes carry the egg to the uterus,fertilisation occurs here
Uterus
The uterus (womb) is where the fertilised egg becomes implanted and finds nourishment
Cervix
The cervix leads from the vagina to the uterus
Vagina
The vagina holds the male penis during sexual intercourse
Ovulation
ovulation an egg is released from the ovary an average of very 28 days
The egg
The egg is released on day 13-15 of the menstrual cycle and it passes along the Fallopian tube to the uterus
Menstruation/period
Menstruation/period the lining a small amount of blood pass out through the vagina (day 1-15)
During intercourse the mans
During intercourse the mans penis fills with blood and becomes hard enough to be placed inside the woman’s vagina
Semen
A mixture of sperm cells and seminal fluid is released into the vagina during intercourse
The sperm swim
The sperm swim up the uterus and into the Fallopian tubes
Fertile period
Fertile period these are the days of the menstrual cycle when the woman is most likely to become pregnant
Menopause
Menopause signal the end of a females ability to reproduce and also the end of her menstrual cycle. Is happens at different ages for different people, typically in the late 40’s to early 50’s
Testes
The testes produce sperm
Fertilisation
If an egg is present in the Fallopian tube, and a couple have sexual intercourse, then one of the sperm cells may fuse with it
Fertilised egg
The nuclei of the sperm and egg fuse together. The woman Is now pregnant
Scortum
The scortum is where the testes are, is is located outside the body to ensure the temperature is lower the body temperature for healthy sperm
Epididymis
The epididymis is coiled tube on the outside of each testes that stores sperm and allows them to mature fully
Zygote
Egg and sperm fuse to form a single zygote
Embryo
Cell division occurs and growth
Foetus
Which attaches to the lining of the uterus ( implantation ) grows more, and after 8 weeks looks like a human
Implantation
When the embryo attaches to the lining of the uterus
Length of pregnancy
The average length of a human pregnancy is 40 weeks
Amniotic fluid
As the embryo develops is the uterus it is protected inside a bag of fluid. This fluid provides a cushion for the embryo
Vas deferens
The vas deferens (sperm duct) brings the sperm from the testes to the penis
Seminal vesicles
The seminal vesicles,prostate gland and cowoeres gland produce seminal fluid which mixes with the sperm to form semen,it nourishes the sperm and allow them to swim
Penis
The penis enters the female and ejaculates semen
Puberty
Puberty describes when the body starts becoming sexually mature (reproductive organs develop). It normally happens between the ages 10 and 16
Male puberty
Male puberty in males sex hormones (testosterone)
are released causing the voice to deepen hair grows
around the sex organs,face,chest and underarms,the
testes and penis grow bigger and start to produce
sperm.
Umbilical cord
A tube joining the embryo to the placenta
Placenta
The placenta is rich in blood vessels
Female puberty
Female puberty in females when the sex hormones
(estrogen and progesterone) are released the breasts
develop hips,widen and hair begins to grow on the
body
Labour
The birth of a baby begins when the uterus muscle start to contract
Waters break
The bag of amniotic fluid bursts and further contractions push the baby out usually head first, through the vagina
Afterbirth
The umbilical cord is cut and the placenta comes out after
Lactation
The production of breast milk
Colostrum
The first three days of milk - very nutritious, and helps protect the baby from infection
Family planning
To control the number of children you have you need to control the number of times fertilisation takes place
Natural methods of contraception
Aim to detect the day ovulation takes place and avoid intercourse during fertile period
Condom
Prevents sperm entering the vagina
Contraceptive pill
Which prevents ovulation
Reliability of contraception
It is important to relise no method is 100% reliable