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Nerves, Hormones and Homeostasis

The final topic for Standard Level!

For updated versions of this post (and more to do with drugs), please click here:

Nerves, Hormones and Homeostasis

Neurotransmitters, Synapses and Drugs

As usual, click on the shadowed images to see an animation.

Introduction to the nervous system

YouTube video:

Loads of useful resources from Neuroscience for Kids

Reflex arc animation from msjensen.

Nerve impulses: resting potential and action potential

Cool tutorial from the Harvey Project

McGraw Hill nerve impulse animation

Nice and simple from mrothery

Another good one from Alberta Psychology

Propagation on myelinated and non-myelinated nerves from Blackwell Publishing

Synaptic Transmission

Great animation from McGraw Hill

Good tutorial from Harvard Outreach

Another WHS Freeman tutorial (lifewire)

The Endocrine System

Good visual introduction from Delmar Learning

Really good animation – lots of info – from e-learning for kids


Tutorial and game from think-bank

Detailed tutorial from the University of New South Wales

Homeostasis in Newfoundland from Memorial University

Another good Freeman tutorial

Blood Glucose and Diabetes

MedMovie introduction

WebMD guide to diabetes

Neurons and Synapses: linklist

Here’s a jazzy introduction from Discovery Channel, with a soundtrack inspired by Tubular Bells:

And now for the serious animations.

Neurons and Action Potentials:

Excellent Flash from  Children’s Hosital Boston

Good introduction from Harvard

Excellent comprehensive tutorial (Harvard Outreach)

Another good AP tutorial (can’t be saved) (Jordan Kerr University)

Generating Action Potential (MRothery, Watford Girls’ Grammar)

Comparing continuous and saltatory transmission (Matthews/Neurobiology)

Propagating an AP (McGraw Hill) (More from this source)

Synaptic Transmission:

Nice clear intro (McGraw Hill)

Another clear one (though missing the post-transmission ‘cleanup’) (BishopStopford)

Some Chemsketches of neurotransmitters (Harvey Project)

Neuromuscular Junction:

Neuromuscular junction step-through (Sinauer Associates)

Simple line-drawing animation (Harvey Project)

Muscle Contraction:

Nice animation of sliding filaments (Matthews/Neurobiology)

A good interactive diagram (Thomson/Brooks/Cole)

Neurotransmitters and Drugs:

Excellent, accessible overview from Jellinek, a Dutch drug education website

Good powerpoint from HHMI

Excellent overview of effects of drugs (Harvard)

Amphetamines, Cocaine, Nicotine as excitatory psychoactives (McGill ‘The Brain’)

Benzodiazepines, Cannabis, Alcohol as inhibitory psychoactives (McGill ‘The Brain’)

Parkinson’s Disease:

Short Introduction (from UPenn/ADAM)

Simple interactive – effects of lesions on inhibitory or excitatory ganglia (San Diego State College of Science)

Sample Questions: have a go at these NeuroBioHL_Qs

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