Coordination+and+response

Nervous control in Humans
BBC Bitesize has an [|article] about sense organs and nerve control.

You should make sure you understand the words

stimulus; receptor; sensory neurone; central nervous system; synapse; transmitter; relay neurone; motor neurone; effector; response

Make sure you look at the second page of the BBC article and look for the difference between rods and cones in the eye

Tom found [|this] link to a web site that explains how neurones talk to each other. Thanks Tom

Hormones
See the [|BBC bitesize article] about this

Tropic responses
Try [|this article] about tropisms

Homeostasis
The BBC article on [|homeostasis] gives a lot of information, but not all of it is needed for this unit - see the syllabus to find out which is needed.

Drugs
[|This] is a good article from the BBC Bitesize website about this topic.

These are words you should know:

[|medicinal drug use], [|recreational drug use], addictive, withdrawal symptom, hallucinogen, stimulant, depressant, performance enhancer, painkiller

Smoking and passive smoking
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