Which of the following is associated with a decrease in cardiac output?
Sympathetic nerves
Parasympathetic neural signals
Pneumotaxic center
Adrenal medullary hormones
According to the text, 'parasympathetic neural signals (another component of ANS) decrease the rate of heart beat, speed of conduction of action potential and thereby the cardiac output' . In contrast, sympathetic nerves and adrenal medullary hormones are stated to increase the cardiac output . The pneumotaxic center is associated with the regulation of respiration .
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