Blood Pressure is lowered by: A.Decreasing sympathetic activity. B. Decreasing parasympathetic activity. C. Increasing parasympathetic activity....
Blood Pressure is lowered by:
A.Decreasing sympathetic activity.
B. Decreasing parasympathetic activity.
C. Increasing parasympathetic activity.
D. Increasing parasympathetic activity.
Homework Answers
Autonomic nervous system is mainly divided into two parts sympathetic(SNS) and parasympathetic(PNS). Both of them originate from spinal cord. Both of them have huge influence on physiological activities like digestion urination and circulation. Both of them have pre ganglionic and post ganglionic neurons.
SNS originates from cranial thoracic and lumbar region and prepares the body for intense physical work hence excitory effect on homeostasis. While PNS originates from cranial and sacral region and mainly helps in relaxing the body and helps in inhibiting high energy function hence have inhibitory effect on homeostasis.
If we increase the activity of parasympathetic nervous system then it will lead to decrease in cardiac output which in turn will decrease the heart rate and eventually it will cause blood pressure to decrease.
Hence option c is correct.
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