4.3 hormones and puberty

• Biologie
• Middelbare school
• vwo
• Leerjaar 2,3

Welcome everyone 

 Think about...

• Take off your coat, hat/cap off.
• Mobile in the phone bag (on silent).
• Book (laptop) + notebook, pen on the table. Bag on the floor.
• Sit in your own place.
• You can eat and drink in the canteen.
• 5 minutes.

schedule 

• Repetition                                10 min.
• Explanation 4.3                      10 min.
• Doing assignments              15 min      
• Closing                                        5 min. 

Talking point 4.2

Bacteria that enter through the urethra and travel into the bladder can cause a bladder infection. Discuss with a student why bladder infections are more common in females than in males.

Learning goals 4.3

You will learn..

• What are hormones?
• Which hormone glands are present in the human body and which hormones do they produce?
• Which hormones affect the reproductive system and how?

What is puberty?

• Experiencing
• For girls 10 - 14
• For boys 12 - 16
• Teenage hormones

What are hormones?

• Directed
• Receptor
• Transmits the message

Hormones

= regulatory substances that control processes in the body

• They do that by giving signals to organs (messengers)
• Produced by hormone glands from the endocrine system
• Transported by the circulatory system to get them where they need to be
• Effect can have a duration of hours up until months/years

Dutch for glands = klieren

Messengers

Hormones are messengers. However, that was the task of the nervous system, right? The difference: the nervous system is for the fast messages (to help you feel and move), the hormones are for the slower messages (to help you grow and change). 

Sex hormones

• Hormones that work in the reproductive system are called sex hormones. 
• Some of those are different for males and females
• Production of these leads to the differences between male and female bodies
• This production happens in many stages of life!

Different types of hormones and their functions

• Oestrogen and Testosterone
• Oestrogen --> puberty and the menstrual cycle
• FSH and LH --> stimulates oestrogen
• Testosterone --> sperm
• Melatonin --> sleep
• Adrenaline --> emergency hormone

How and which hormones affect puberty?

• Changes of puberty
• Gonadrotropin-releasing hormone
• LH and FSH
• Both
• For guys --> testes, production
• In girls --> stimulate, ovaries, oestrogen
• Pregancy 

Doing work 

finish the homework and make assignments 

Mood-swings and the brain

• Sex hormones
• Unused connections
• Prunes
• Getting stronger
• More efficient
• The prefrontel cortex
• Make decisions
• The amygdala
• Emotional rollercoaster