BS 5.4 - The nervous system

5.4 - The nervous system
What's the plan today?
  1. Structure of the nervous system
  2. How the nervous system works
  3. Nerve cells
  4. Pathways taken by nerve impulses 
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Slide 1: Tekstslide
BiologieMiddelbare schoolvwoLeerjaar 3

In deze les zitten 10 slides, met interactieve quiz, tekstslides en 1 video.

Onderdelen in deze les

5.4 - The nervous system
What's the plan today?
  1. Structure of the nervous system
  2. How the nervous system works
  3. Nerve cells
  4. Pathways taken by nerve impulses 

Slide 1 - Tekstslide

Structure of the nervous system
Notes:
1. Central nervous system (CNS) = Brain and spinal cord
2. Nerves

Slide 2 - Tekstslide

How does the nervous system work?
Notes:
Sensory cell receive stimulus from outside (ex. chocolate
Sensory cells                                                                                                                         = impulses                                nerves   

     brain    

 muscles

Slide 3 - Tekstslide

Structure of the nerve cell 
Notes:
1. Cell body - located near the CNS
2. Axon - conducts impulses to and from cell body

Slide 4 - Tekstslide

What is a nerve?
Notes: 
nerve = a bundle of axons of nerve cells surrounded by a tough, protective layer

Slide 5 - Tekstslide

Path taken by nerve impulses
notes:
2 types of pathways
1. Conscious reaction - voluntary response, ex: girl and chocolate
2. Reflex - involuntary response, impulse does not go to the brain but stays within the CNS
ex. withdrawal reflex = hand touches fire 

Slide 6 - Tekstslide

Slide 7 - Video

Do assignment 2, 3, 6, 7, 8 

Slide 8 - Tekstslide

Slide 9 - Tekstslide

nervous system

Slide 10 - Woordweb