The nervous system

Welcome everyone!
Today:
New chapter: Senses, TB p. 136
Explanation about nervous system
Making exercises 
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Slide 1: Tekstslide
BiologieMiddelbare schoolvwoLeerjaar 3

In deze les zitten 14 slides, met interactieve quizzen en tekstslides.

time-iconLesduur is: 60 min

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Welcome everyone!
Today:
New chapter: Senses, TB p. 136
Explanation about nervous system
Making exercises 

Slide 1 - Tekstslide

What is a sense?

Slide 2 - Woordweb

Which senses do we have?

Slide 3 - Woordweb

Well known senses

Slide 4 - Tekstslide

What are we going to learn to day?
Today we will be learning:
How we perceive the world around us. 
What the nervous system consists of. 
How the nervous system generally works. 

Slide 5 - Tekstslide

Senses
The things we can observe around us are called stimuli. There are different kinds of stimuli, and every sensory organ/receptor reacts to a different stimulus. Sensory organs are built to convert a stimulus to an impulse; electrical current through your nervous system. An impuls goes to the brains, where it gets processed so you can observe everything that is around you. 

Slide 6 - Tekstslide

Different senses

Slide 7 - Tekstslide

Nervous system
The nervous system, just like your endocrine system makes sure communication within your body takes place. 
It has 2 parts: the central nervous system and the peripheral nervous system. 

Slide 8 - Tekstslide

Receptor --> effector 

Slide 9 - Tekstslide

Neurones
While the cell body are always in or around the CNS, the shoots of neurones can get very long. 

Slide 10 - Tekstslide

Impulse frequency 

Slide 11 - Tekstslide

Neurones
Neurones pass a impuls within each other through a synapse where a certain chemical (neurotransmitter) flows through. 

Slide 12 - Tekstslide

Neurotransmitters

Slide 13 - Tekstslide

Get to work!
The homework for next week are the exercises of page 45 of the workbook and the corresponding exercises of the textbook. 

Slide 14 - Tekstslide