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Bainbridge Reflex

Increases heart rate in response to an increase in atrial pressure.

Bainbridge Reflex Pathway

Increased blood volume

Increased venous return

Increased atrial pressure

Stretching of low-pressure baroreceptors in the atrial wall

Increased firing

Afferent signal via vagus nerve

Medullary centers

Efferent signals in sympathetic and parasympathetic nerves

Stimulation of SA node

Increased heart rate


Prevents damming of blood in veins, atria, and pulmonary circulation.


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