2. The centre of circulatory system.
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- The cardiovascular centre is part of the medulla oblongata of the brainstem. Normally, the heart beats without nervous control. In some situations, such as exercise, and major trauma, the cardiovascular centre is responsible for altering heart rate. It also mediates respiratory sinus arrhythmia.
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The heart lies to the centre of the heart and pump blood through teh rest of the network.
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