The aortic baroreceptor senses stretching of the aorta. How will the nervous system respond?Multiple ChoiceIncreased parasympathetic activity will increase heart rate.Increased sympathetic activity will increase heart rate.Increased sympathetic activity will decrease heart rate.Increased parasympathetic activity will decrease heart rate.

Select the CORRECT answer. When the baroreceptor reflex is triggered by a decline in blood pressure:Group of answer choicesSympathetic activity increases and cardiac output increases.Peripheral resistance decreases.Sympathetic activity increases.Cardiac output increases.

Which of the following statements about the baroreceptor reflex control of blood pressure is INCORRECT?Group of answer choicesBaroreceptors are stretch receptors that detect distension of the vascular walls in which they are located.Changes in arterial pressure are primarily detected by baroreceptors located in the carotid sinuses and aortic arch.An increase in arterial pressure raises the firing rate of afferent baroreceptor nerves.A decrease in arterial pressure is likely to result in decreased sympathetic activation and increased parasympathetic activation of the sinoatrial node.

Which of the following does NOT occur in response to baroreceptors detecting an increase in mean arterial pressure?Question 1Select one:a.Decreased heart rateb.Decreased venous compliancec.Decreased end diastolic volume.d.Decreased frequency of sinoatrial node action potentialse.VasoconstrictionClear my choice

What mechanism does the parasympathetic nervous system use to decrease heart rate?

Which of these factors would cause an increase in heart rate?Multiple ChoiceIncreased parasympathetic stimulationA decrease in carbon dioxide in the bloodStimulation of baroreceptors in the aortaExcess potassium ionsA decrease in blood pH