human reproductive systems Flashcards
male reproductive system (7)
penis, testis, scrotum, foreskin, sperm duct, glands and urethra
female reproductive system (4)
fallopian tubes, ovary, vagina, uterus
what are sex cells also called
gametes
what is a menstrual cycle
monthly sequence of events after puberty that prepares uterus in case it recieves a fertilized egg
process of menstrual cycle
bleeding, uterus lining breaks down and gets lost in the vagina, uterus lining build back up again with a think spongy layer full of blood vessels and ready to receive a fertilized egg, egg released from ovary, if no fertilized egg lands on the wall then the lining breaks down and cycle starts again
what is gestation
the time between fertilisation and the baby being born
process of fertilisation
sperm released during sex and travels through the fallopian tubes, nucleus of the sperm combines with nucleus of the egg and form a fertilised egg which then divides into an embryo, this sticks onto the uterus wall and embryo develops to a baby in 9 weeks. ready to born after 9 months
after nine weeks what is a baby also called
a foetus
what does the placenta allow
substances to pass between the blood of mother and foetus
features near the placenta
uterus lining and umbilical cord
what does the mother give to the foetus and what does the foetus give to the mother
nutrients and oxygen, waste
what would happen if a pregnant lady smokes, drinks alcohol or takes drugs
harmful chemicals can cross the placenta which will can affect the health and development of the foetus
what is a drug
anything that affects the way the body works
what is a recreational drug
a drug uses for enjoyment rather than medicine
3 things a recreational drug can affect
health ( brain ), life processes (movement) and behaviour (energetic/depressed)
