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Peripheral Nervous System Discussion Questions II

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Q 1. 1. Why is it necessary for blood flow to be restricted to several body systems during a sympathetic response? 2. 2. If an individual has a chronically low heart rate, would a Beta 1 antagonist be a possible pharmaceutical intervention? Justify your answer. 3. 3. If someone were to breathe in large amounts of an industrial pesticide, they may experience respiratory distress. What receptor/ligand complex could this pesticide target? Justify your answer

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1. Sympathetic nervous system constrict the arteries and arterioles which increases the vascular resistance and decreases the blood flow . The increased vascular resistance causes the arterial pressure to increase . During extensive stress , the sympathetic system increases the blood flow to important stress response organs and the blood flow in high pressure thus decreasing or restricting the blood flow to other organs .2.Beta 1 antagonist is used to treat high blood pressure and high heart rate . It is used to treat angina , fibrillation or during heart failure etc. Beta 1 antagonist should not be used if a person is having chronically lower heart rate because if beta antagonist is given it can cause more dizziness and lightheadedness to a person . It can leads to death or trauma to a person .