Posts Tagged ‘neuron’

Neurotransmitters and synapses

Friday, February 12th, 2010
addiction by alancleaver_2000 on flickr

addiction by alancleaver_2000 on flickr

Here are the big questions for us to tackle in this section:

  • How does decision-making occur in the CNS?
  • How do psychoactive drugs affect the brain and personality?
  • What the physiological effects of THC and cocaine?
  • What are the causes of addiction?

We’ll use this presentation from Mr Taylor.  And, as usual, click4biology is a great resource.  Also, for fun, check out this site.  You’ll find some very entertaining mice!

Thanks to Mr Hobbins for this powerpoint. E4 Neurotransmitters and Synapses

Stimulus and response

Friday, February 5th, 2010

The syllabus guide for this topic: Option E – syllabus guide

We are starting option E with a look at the nervous system.  Check out this excellent presentation from Mr Taylor.

What are some examples of reflexes that exist in humans?  Are there some that exist in babies but not in adults?  Do other animals have reflexes that we don’t have?  Do plants have reflexes?  What is the purpose of a reflex action? 


Nervous system

Thursday, October 22nd, 2009
neurons from www.images.wellcome.co.uk

neurons from www.images.wellcome.co.uk

Some of the questions we’ll be tackling in the next section of the syllabus (6.5) are:

Do you know what the CNS and PNS are? 

Can you explain what role receptors, sensory neurons, relay neurons, motor neurons and effectors play in conducting nerve impulses?

Can you draw and label a diagram of a motor neuron?

Can you define resting and action potentials?

Can you explain how nerve impulses pass along a neuron?

Can you explain how impulses travel from one neuron to the next?

Read through your textbook pages 240-246 to get a head start on this unit over the break 🙂

And once again, a great presentation from Mr Stephen Taylor in Bandung to help you learn this stuff!

In class we will use this presentation – Nervous System

There are some useful animations here,  here and here that might help you visualize what’s happening.