4.8 The birth 2HVTTO

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 2

B8 The birth

• Jacket in your locker
• Put your things on your desk

       Laptop/Book

       Notebook, pencil case

• Bag on the floor
  
• Read pages 79-80

Lessongoals

• Understand: I can describe how childbirth progresses by explaining the key stages from labor to delivery.
  
• Analyze: I can recognize possible problems that a baby’s position might cause during birth by identifying different positions and their effects on delivery.

Homework U4 B8

Asgmt 1-5

Wheel of homework

Go to Lessonup.app and use this code

Reward

Penalty

Rewards

• +1 cm2 cheatsheet = you get to make a cheatsheet for a test. This starts being 1 by 1 cm. Everytime you earn this it gets 1 cm bigger to a max of 4 by 4 cm.
• 1/3 +0.5 = If you earn this 3 times you get to add 0,5 to one of your biology marks.
• Snitch = You can pick a classmate who also is checked for homework, you earn two V's (having 3 earns you a 1/3 +0,5)
• Too bad = You only get one V
  

penalties

• 45 min extra worktime = you need to come after school and do homework, this will last for 45 min or until the task is done
• Coloringpage = You get to pick a coloringpage, You need to color it and perform tasks that might be on it. You need to hand it in during the next lesson, If you don't you get 2 marks.
• 2/1 marks = a mark is an X, if you get 3 of these you will automaticly earn the 45 min extra worktime.
• Snitch = You can pick a classmate who also is checked for homework
• Lucky! = You don't get a penalty

An egg cell has been released, but was not fertilized.
How many days later will menstruation happen?

1. a few days later
2. 14 days
3. 28 days
4. Not for a couple of months

Baby's take about 9 months to develop in the uterus.
Most baby's do not poop during this time.

Why does a baby not poop in the uterus?

Which contraceptive also protects against STI's?

1. Condom
2. vaginal ring
3. IUD
4. Sterilization

A woman has been sterilized.
On the day of ovulation she has intercourse with a man.

Explain why she can not get pregnant.

Where does fertilization happen in the body?

1. Vagina
2. Uterus
3. Sperm duct
4. Falopian tube

Some people seem to think that eating chicken eggs is comparable to eating a chicken period. This is untrue!

Explain why chicken eggs are not the same as period when you compare this to human reproductive organs.

How long does a birth/delivery last from start to finish?

The birth

1. Dilation
2. Delivery
3. Afterbirth

Dilation

• Goal: prepare body for delivery.
• Contractions      make the  cervix ('mouth' of uterus open up. 
• Waters break
• Often longest part of the birth

= Muscle movements that happen in the uterus

= amniotic sac around the body opens up, water inside comes out

Which baby has the easiest birth?

1. 
2. 
3. 

Delivery

• Goal: Pushing baby out of uterus.
• Delivery contractions      push baby out

= muscle movements in uterus, pushing the baby out during delivery

Afterbirth

• Goal: Emptying the uterus
• Muscle movements loosen en push out: placenta, amniotic tissues, umbilical cord = afterbirth
• Before afterbirth: baby is cleaned up, umbilical cord is cut

Eating your own placenta?

• No scientific proof for  advantages
• Much research says: eating it, doesn't help you 'heal' after birth.
• There is proof that eating can be dangerous and cause problems.
• A study found the following riscs after eating a placenta:

- Blood infection: Which the mother can pass onto her baby during breastfeeding.

- Virusses like hepatitis and HIV can survive and be transmitted via the eaten placenta

- Can cause painful migraines

What you should do: U4 B8

• Read pages  79-83
• Asgmt  1-5

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Make other homework
• Read a book

Zs = Working in Silence

• No asking questions
• Silent, don't disturb anyone
  
• Stay at your  desk

What you should do: U4 B8

• Read pages 79-83
• Asgmt 1-5

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Make other homework
• Read a book

Zw = Working with whispering

• Teacher is available for questions
• Only whisper with the student next to you
• Stay at your  desk

Some people say that when a woman goes through birth, she gives birth twice.
Explain what people mean with this

Tidy Duty

3 people each lesson

• Desks: empty and straight
• Chairs:  underneath the desks OR end of day: on the desks
• Floor: no rubbish