The nervous system 2

Welcome everyone!
Today:
Discussing homework (WB page 54)
Explanation about nervous system
Making exercises 
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Slide 1: Tekstslide
BiologieMiddelbare schoolvwoLeerjaar 3

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Welcome everyone!
Today:
Discussing homework (WB page 54)
Explanation about nervous system
Making exercises 

Slide 1 - Tekstslide

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


Slide 2 - 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 3 - Tekstslide

Receptor --> effector 

Slide 4 - Tekstslide

Neurones
While the cell body are always in or around the CNS (central nervous system), the ''legs'' (axons) of neurones can get very long. 

Slide 5 - Tekstslide

Impulse frequency 

Slide 6 - Tekstslide

Neurones
Neurones pass a impulse over to another neuron through a synapse, where a certain chemical (neurotransmitter) flows through. 

Slide 7 - Tekstslide

Neurotransmitters

Slide 8 - Tekstslide

Nerves

Slide 9 - Tekstslide

Reflexes
Sometimes your body needs to react very fast, or it does something autonomously. It does so through reflexes. 
During reflexes, the brain doesn't make a new impuls. But the impuls gets to the spinal cord, and them immediately goes to the effector. 

Slide 10 - Tekstslide

Get to work!
The homework for next week are the exercises of page 57 of the workbook and the corresponding exercises of the textbook. 

Slide 11 - Tekstslide