Explain how the pacemaker potential changes under sympathetic and parasympathetic influences. Please explain in reference to movement of ions across the membrane.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Explain how the pacemaker potential changes under sympathetic and parasympathetic influences.
Please explain in reference to movement of ions across the membrane.
+30-
RX '19
Normal
0-
t Symp
T Vagal
-30-
1 Phase 4
slope
Phase 4
slope
-60
Transcribed Image Text:Explain how the pacemaker potential changes under sympathetic and parasympathetic influences. Please explain in reference to movement of ions across the membrane. +30- RX '19 Normal 0- t Symp T Vagal -30- 1 Phase 4 slope Phase 4 slope -60
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Pacemaker potential is created when an impulse from the sinoatrial node generates a rhythmic firing of the heart. This firing causes changes in the heart rate and stimulates the heart rate.

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