🌘 Controlling Heart Rate

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Controlling Heart Rate

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  Controlling Heart Rate

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 OTHER COMMUNICATION & HOMEOSTASIS LESSONS

Second Messengers (cAMP)

Positive & Negative Feedback

Control of Body Temperature

Endotherms & Ectotherms


  REVISION PACK

Additional Notes

One 2018 OCR question included the terminology 'vagus nerve' and 'accelerator nerve':

The vagus nerve forms part of the parasympathetic nervous system, associated with slowing down heart rate.

The accelerator nerve forms part of the sympathetic nervous system associated with increasing heart rate.

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Histology, Control of Heart Rate, Reflexes

Check out the other histology questions and you will soon learn how to identify the different tissue types from photomicrographs.

  QUESTION   MARK SCHEME

  A LEVEL - PAPER 1 2018 - QUESTION 23

Q Analysis
Q Response
Mark Scheme (12 Marks)

 RELATED LESSONS

If you found this question difficult, choose one of the lessons below for a focused action hour of study.

Reflexes |  Heart Rate |  Types of Muscle |  Histology of Liver |  Pancreas Histology |  Control of Heart Rate |  Nervous System Intro |  Endocrine Glands

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