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Lesson 1: The nervous system

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In deze les zitten 18 slides, met interactieve quizzen en tekstslides.

time-iconLesduur is: 45 min

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Slide 1 - Tekstslide

Brain and Senses
Lesson 1: Neurons and the brain





Chapter 8: Kerboodle:  'Control and coordination' 
-Page 108 t/m 111


Slide 2 - Tekstslide

How do you detect and respond to changes? 
  • Nervous system: electrical messages
  • Hormonal system: chemical messages


Slide 3 - Tekstslide

Getting a reaction
-Stimuli (a change that can be detected)

-Receptors (detect changes)

-Effectors (bring about a response)

Slide 4 - Tekstslide

An example 
Throwing a pen towards someone 



  • Stimuli --> the pen coming towards you 
  • Receptors --> retina of your eye 'seeing' the pen 
  • Effectors --> muscles in your arm to catch the pen

Slide 5 - Tekstslide

The Nervous system
The nervous system controls your muscles 
-walk / write / exercise 
-swallowing / blinking / breathing

-Central nervous system vs. 
-Peripheral nervous system


Slide 6 - Tekstslide

The central nervous system (CNS)

Slide 7 - Tekstslide

Nerve cells / neurons 
  • Sense organs (receptors) send messages to the CNS
via Sensory neurons

  • Muscles and glands (effectors) CNS send messages telling them wat to do 
via Motor neurons

Slide 8 - Tekstslide

Slide 9 - Tekstslide

The message
-Nerve impulses (electrical signals)
-Via the axon of the nerve cell
-Fatty sheat around axons make the impuls travel faster


-Multiple slerosis (MS) the fatty sheat breaks down they lose their use of the muscles 

Slide 10 - Tekstslide

Slide 11 - Tekstslide

You get an itch in your elbow. What is the stimulus in this reaction?
A
Receptors in your skin
B
The itch itself
C
muscles that move your arm to scratch
D
The brain that decides to scratch the elbow

Slide 12 - Quizvraag

You get an itch in your elbow. What is the response in this reaction?
A
Receptors in your skin
B
The itch itself
C
muscles that move your arm to scratch
D
The brain that decides to scratch the elbow

Slide 13 - Quizvraag

You get an itch in your elbow. What is the coordinator in this reaction?
A
Receptors in your skin
B
The itch itself
C
muscles that move your arm to scratch
D
The brain that decides to scratch the elbow

Slide 14 - Quizvraag

You get an itch in your elbow. What is the receptor in this reaction?
A
Receptors in your skin
B
The itch itself
C
muscles that move your arm to scratch
D
The brain that decides to scratch the elbow

Slide 15 - Quizvraag

Which will send a message along sensory neurons?
A
Receptors in your skin
B
The spinal cord
C
The muscles in your arm
D
The brain

Slide 16 - Quizvraag

Which will receive a message by motor neurons?
A
Receptors in your skin
B
The spinal cord
C
The muscles in your arm
D
The brain

Slide 17 - Quizvraag

HW for next lesson 
Hw for lesson 3: 
Complete the worksheet on classroom

Slide 18 - Tekstslide