U4 B2 2HVTTO

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

B2 A woman

• Take off your jacket
  
• Put your things on your desk
  

       Book, notebook, pencil case

• Bag on the floor
  
• Read pages 16-20

Lessongoals

• You can name the parts of the female reproductive system with their functions and characteristics
• You can describe the menstrual cycle

Wheel of homework

Go to Lessonup.app and use this code

Reward

Penalty

What does fertile mean?

Getting a lower voice is an example of a ... sex characteristic (1 word)

Most people are atracted to people with: soft, supple skin, healthy functioning bodies and nice hair.
Explain why this makes sense biologically.

uterus

fallopian tube

ovary

bladder

urethra

vagina

clitoris

Clitoris = sensitive to stimulation

makes a woman orgasm

There can be a hymen:

• never closes off vagina
• Differs in size

urethra

inner labia

outer labia

hymen

1

Sperm enters the female body 

♂

2

Sperm swims through the uterus, towards the fallopian tubes.

♂

3

1 sperm cell can fertillize the ovum, the others die

without an ovum the sperm will die

♂

1

an ovum (egg cell) is released from the ovary = ovulation

♀

2

Ovum is fertilized by sperm cells and starts cell division.

OR

Ovum is not fertilized and dies in fallopian tube

♀

3

the fertiziled ovum starts cell division

♀

4

Implantation of the fertilized ovum, pregnancy has begun.

♀

fallopian tube

fertilization

ovulation

ovary

implantation

thick mucous lining

uterine wall

cervix

opening of uterus

What you should do:

• Read pages  16-18
• Do asgmt  1,2,3,7 pgs. 21-24

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:

• Read pages 16-18
  
• Do asgmt 1,2,3,7 pgs. 21-24

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

Tidy Duty

Today these people are on tidy duty

• Desks: empty and straight
• Chairs:  underneath the desks
• Floor: no rubbish

Menstruation/period

• Uterus makes a thick mucous layer/inner lining
• Menstruation = getting rid of this layer
• Every month this tissue is made en then released from the body

Menstrual cycle

Menstruatie

Uterus gets rid of the mucous layer, this comes out of the vagina.

This takes 4 days on average!

Uterus starts making new mucuous tissue.

This slowly becomes thicker

Ovulatie

(about) 14 days after the start of the menstruation a new ovum is released from an ovary

14

inner lining of uterus keeps getting thicker

Volgende menstruatie

(about) 28 days after the start of the last menstruation the next menstruation will happen.

This only happens if the ovum wasn't fertilized 

Cycle repeats

What would happen if the menstrual cycle would keep on going after fertilization of the ovum?

Hormones and puberty

• the pituitary makes hormones that trigger other glands
• In women the ovaries make estrogen
• Without estrogen a woman won't get secondary sex characteristics and will remain infertile

What can women use during their period?

An ovulation happens and 2 days later the ovum hasn't been fertilized.
What happens now?

1. Ovum dies in the ovary
2. Ovum dies in the fallopian tube
3. Ovum dies in the uterus
4. Ovum dies in the vagina

What you should do:

• Read pages  16-20
• Do asgmt  1-4, 6-8, 9c, 10c pgs. 21-26

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:

• Read pages 16-20
  
• Do asgmt 1-4, 6-8, 9c, 10c pgs. 21-26

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

Tidy Duty

Today these people are on tidy duty

• Desks: empty and straight
• Chairs:  underneath the desks
• Floor: no rubbish