reproduction in animals Flashcards
(23 cards)
what is the function of the oviduct
transports the egg from the ovary to the uterus, this is also where fertilisation takes place
what is the function of the ovary
contains hundreds of eggs
what is the function of the uterus
muscular bag with soft lining where the baby develops
what is the function of the cervix
ring of muscle below the uterus. keeps the baby in place until birth
what is the function of the vagina
muscular tube leading from the cervix to the outside of the body. to pass the baby during birth. also receives the penis during sexual intercourse
urethra
passes urine from the body
what is the function of the glands
produces seminal fluid to carry the sperm
what is the function of the penis
to pass urine from the mans body and to pass sperm to the woman’s vagina during sexual intercourse
what is the function of the sperm duct
to pass sperm from the testis to the penis
what is the function of the testis
store and make sperm cells for reproduction
what is the function of the scrotum
protect the testes
what are sperm and egg cells known as
gametes
how long does the menstrual cycle last on average
28 days
what is implantation?
the implantation of the zygote in the uterus lining.
what is gestation and how long does it last for in humans?
it is the development of thew baby from conception. it lasts 9 months.
what is the role of the placenta
formed partly from the lining of the uterus and the outside cells of the developing embryo. it supplies nutrients and oxygen and removes waste
what is the role of the umbilical cord
it attaches the foetus to the placenta, so it can receive nutrients and oxygen and remove waste
what is the role of the amniotic sac
it surrounds the developing foetus to protect it
what is the role of the amniotic fluid
fluid that fills the amniotic sac, protects the developing foetus
what can alcohol do to a baby
brain damage
what can gases from smoking do to a baby
it reduces the baby’s birth weight
what can nicotine from smoking do to a baby
the baby can be born a nicotine addict
what can viruses do to a baby
babies can be born with HIV or other sexually transmitted viruses if the mother is infected
