International A Level Biology / Muscles, movement and the heart
Controlling heart rate: the cardiovascular control centre revision notes
Edexcel International A Level Biology (YBI11), chapter 21: Muscles, movement and the heart, specification point 7.13, 7.14. Part of the full course.
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The cardiovascular control centre changes heart rate using information from receptors and impulses along two opposing nerves. Adrenaline also prepares the body for action by increasing cardiac output and directing more oxygen and glucose to muscles.
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