Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Human reproduction

IGCSE human reproduction 15.1-15.5

QuestionAnswer
male sex organs? where are they located in? testes- located inside a sac called the scrotum which hangs outside the body
what does the make sex organ do? produce spermatazoa (sperm) make male hormone testosterone # testosterone- stimulates changes in a boy's body as he develops into a adult (age of 10 ~ 16) during puberty
sperm duct? connects the small tubules (just outside the testes where they mature) which stores sperm cells produced by testes to the urethra
semen? mixture of sperm cells and fluid also known as seminal fluid
penis? where the two sperm ducts joined with urethra runs down (at the centre of it)
gametes? sex cells male gamete- sperm female gamete- ovum = egg
zygote? fertilised egg formed when the cell membrane of the sperm cell fuses with the egg cell membrane the sperm nucleus moves through the cytoplasm of the egg and the two nuclei fuse together
mitochondria? releases energy to power swimming by the tail
oestrogen?progestrone? female hormone made by the ovaries
ejaculation? when the contractions of the urethra move the seminal fluid through the penis into the vagina
Fertilisation occurs when a sperm cell fuses with an egg in the oviduct of the female ovulation must have taken place and a sperm cell must have reached the oviduct
embryo a ball of cells formed by the division of the sygote which passes down the oviduct and implants un the lining of uterus
placenta has a large surface area for gas exchange and diffusion of food and waste between the fetak blood and the mother's blood
amnion and amniotic fluid protect the fetus from mechanical damage in the uterus
breast milk better than formula milk- contains antibodies, protect the baby from common infections
anti-natal care involves mother having enough calcium, iron, carbohydrate and protein in her diet should avoid smoking, drugs and alcohol
passive immunity obtained from breast milk child has the mother's antibodies, unable to produce them itself
sexual intercourse during this time, the male's semen is transferred into the vagina of the female
sperm cells much smaller than the female egg cell produced in huge numbers are able to swim using a tail
Created by: YoungNan
Popular Biology sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards