doc, 287 KB
doc, 287 KB
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doc, 137.5 KB
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doc, 128 KB
A worksheet (three different versions are included) that is aimed at Advanced Biology students and which discusses how heart rate is controlled by both the brain and hormones. Each worksheet has a slightly different emphasis and can be adapted to the needs of your class. Topics covered include:

1. How the heart is innervated by the brain
2. The nature of sympathetic and parasympathetic control
3. The involvement of hormones in controlling heart rate
4. The action of neurotransmitters at synapses
5. The action of drugs that can affect the cardiac cycle
6. How chemoreceptors and baroreceptors are involved in maintaining a constant blood pressure

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