Advertisements

2.4 Coordination

The Nervous System

    • How and why do organisms respond to changes in their environment?
    • Can you list what is required for a coordinated response?
    • What makes up the CNS?
    • Can you explain that receptors are used to generate signals in neurones, resulting in a rapid response?
    • What is a reflex arc?

This slideshow requires JavaScript.

Download my PowerPoint presentation on this topic for only £0.99:  bow now

 Click here to try working your way through this animation and answer the questions at the end of each section.

Screen Shot 2015-04-01 at 14.25.22

This video explains the 5 separate steps involved in the automatic heat reflex response.

Click here to learn more about the structure of sensory and motor neurones.

Screen Shot 2015-04-01 at 14.30.22

Click here to learn more about the reflex arc.

Screen Shot 2015-04-01 at 14.36.40

Test your knowledge with Quizlet: IGCSE Biology – The Nervous System

quizlet_logo_large

……………………………………………………………………………………………………………………………………………………………………

The Eye

  • Can you label a diagram of the eye and explain the function of each part?
  • How does the eye focus on near and distant objects, and respond to changes in light intensity?

This slideshow requires JavaScript.

Download my PowerPoint presentation on this topic for only £0.99:  bow now

Watch this video clip to journey through the human eye and see just how incredible it is.

Watch Mr Exham dissect a pig’s eye

Click here to watch a video tour of the eye, learn about its anatomy, and hear how the eyes of the Thai Moken Tribe have adapted to see clearly underwater.

Screen Shot 2015-04-01 at 14.39.00

Click here to watch a video to learn more about the structure of the human eye.

Screen Shot 2015-04-01 at 14.40.12

Click here to watch a cow dissection and learn more about the structure of the eye.

Screen Shot 2015-04-01 at 14.41.20

Click here to practice labelling the eye.

Screen Shot 2015-04-01 at 14.42.19

Click here to test your knowledge of the function of each structure in the eye.

Screen Shot 2015-04-01 at 14.43.18

Click here to try a virtual eye dissection!

Click here to see an animation of how the eyes work.

Screen Shot 2015-04-01 at 14.45.41

Test your knowledge with Quizlet: IGCSE Biology – The Eye

quizlet_logo_large

……………………………………………………………………………………………………………………………………………………………………

Extension Material

Click here to watch an animation of how a synapse works.

Screen Shot 2015-04-01 at 14.44.50

Click here to try correcting long and short sighted eyes.

Screen Shot 2015-04-01 at 14.47.16

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: