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3. How has resistance in the gastrointestinal (GI) tract and brain, respectively, changed as blood pressure...

3. How has resistance in the gastrointestinal (GI) tract and brain, respectively, changed as blood pressure falls back to normal?

GI Tract:

Brain:

How does blood flow to the GI tract change from during and after the speech, and the brain?

Which branch and division of the nervous system is regulating these changes?

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Answer #1

if blood pressure is high it is known as hypertention. it could cause several damaging effect on various body organs.

we know resistance in brain and gi tract change as blood pressure fall. this control is done by baroreceptors.

baroreceptors are sensory neurons that are excited by streach in blood vessel. increase in pressure of blood vessel triggers increased action potential genaration. the sensory information is used primarily in autonomic reflexes that influence cardiac output and vascular smooth muscle to influence total peripheral resistance. baroreceptors act immediately as part of negetive feedback system and return the blood pressure to normal lebel.

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