Receptors and Effectors

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Receptors and Effectors
What are receptors and effectors and
to what do they respond?
Starter:
What are the 5 senses.
What are the stimuli for these?
What detect the stimuli?
Stimulus: a change in the environment that causes a response.
• outline the key components involved in neuron
coordination in the case of simple reflexes
• categorise the types of receptor needed to detect
different stimuli
• explain that receptors can be single cells or
grouped into complex organs
• investigate the location of specific receptors in
the eye
• explain that effectors are organs that contain
muscles or glands which allow the body to
respond to stimuli
Complete the jigsaw puzzle and
use the information to label you
eye diagram.
• MAKE JIGSAW – print picture and label and
cut up.
Eyes as effectors
• Lights on / off game.
Effectors
Can you name
some effects?
- Burn hand
- Chased by
a bear
- Bright light
in eyes.
- Ball thrown
at head.
Difference between hormonal and
nervous responses.
• Complete the card sort and use it to help you
describe the differences and similarities
between hormonal and nervous responses.
Linking receptors and effectors.
If you stick your hand on a pin, you move it
away.
What happens in between to make this
happen??
Complete the first part of the
worksheet.
What special features does this cell have to help it
do its job?
Is this an effector or receptor neurone?
A Reflex Arc
What happens if ….
• You’ve just baked an AWESOME cake for your
mums birthday! WOO HOO.
• But OH NO
• You have forgotten to wear oven gloves.!
• What do you do?!
Modifying simple reflex reactions.
Enter …
• Complete the rest of the worksheet on the
CNS and PNS
Random plenary selector

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