The medulla oblongata controls heart rate via two centers: one that uses the sympathetic nervous system to increase heart rate, and another that uses the parasympathetic nervous system to decrease it, both influencing the heart's sinoatrial node (SAN).
El bulbo raquídeo controla la frecuencia cardíaca a través de dos centros: uno aumenta la frecuencia mediante el sistema nervioso simpático y otro la disminuye mediante el sistema nervioso parasimpático, ambos conectados al nodo sinoauricular (SA) del corazón.
| Front | State which part of the brain controls heart rate, describe how the role of controlling heart rate is divided into two centres. |
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| Back | Medulla oblongata - has two centres that are linked to the SAN in the heart by motor neurones:
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