If the cardioinhibitory center of the medulla oblongata were damaged, which division of the autonomic nervous system would be affected, and how would the heart be influenced?

1)In the regulation of heart rate, which of the following is the proper stimulus? Group of answer choices -Change in mean arterial pressure -mean arterial pressure -change in heart rate -heart rate   2) If a stimulus is a decrease in mean arterial pressure (MAP), what must be the response if using the baroreceptor reflex? Group of answer choices -Increase in heart rate -Decrease in heart rate -Increase in MAP -Decrease in MAP   3)The brainstem acts as the integrating center for the baroreceptor and chemoreceptor reflexes. Group of answer choices True False   4)A change in MAP causes a change in action potential firing along the afferent pathway of the baroreceptor reflex. Group of answer choices True False

1) Where the action potential is generated (i.e. atria or ventricles) 2) What actions are occurring during this process (i.e. contraction and ion flow) 3) When relaxation occurs

After stimulating the vagus nerve, which of the following occurred to the heart rate? (the directions state to wait for 2 full passes across the oscilloscope - wait for at least 4-5). (A) heart rate increased (B) heart rate decreased (C) heart rate decreased and then stopped