Unit 4 human reproduction noemi s
Upcoming SlideShare
Loading in...5
×
 

Unit 4 human reproduction noemi s

on

  • 160 views

 

Statistics

Views

Total Views
160
Slideshare-icon Views on SlideShare
104
Embed Views
56

Actions

Likes
0
Downloads
0
Comments
0

3 Embeds 56

http://englishforkids22.blogspot.com.es 52
http://englishforkids22.blogspot.com 2
http://englishforkids22.blogspot.com.br 2

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    Unit 4 human reproduction noemi s Unit 4 human reproduction noemi s Presentation Transcript

    •  Primary sexual characteristics .We alredy have them when we are born and they are different for male and female - Secondary sexual characteristics .During puberty , between the ages of eleven and fifteen , the reproductive system matures . Other changes are specific to each sex : .Girls develop breasts and their hips get wider .Boys get deeper voices .
    •  Reproductive cells carry out the function of reproduction .  Sperm are the male reproductive cells . They are small . They have a head and a long tail called a flagellum . They are produced in large numbers from the time of puberty .  Ova are the female reproductive cells . They do not move .From puberty , and ovum matures every month .
    • -The female reproduction system is made up of : .The ovaries .The uterus .The fallopian tubes .The vagina .The vulva -The male reproductive system is made up of : .The testicles .The vas deferens .The urethra .The seminal vesicles .The penis
    •  Pregnancy last about 9 months and ends in a birth .  During the early stages , different structures are created to protect the embryo . . Placenta . Umbilical cord . Amniotic sac
    •  The process of giving birth is called labour . Labour takes place in three phases . . Dilation . Expulsion . Afterbirth