PHYSIOLOGY
CARDIAC MUSCLE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
What is the main effect of Vagal cardiac stimulation?
|
|
negative inotrophic
|
|
|
negative chronotrophic
|
|
|
positive chronotrophic
|
|
|
negative inotrophic
|
Explanation:
Detailed explanation-1: -Vagal stimulation decreases left ventricular contractility mainly through negative chronotropic effect.
Detailed explanation-2: -Vagal nerve stimulation increases right ventricular contraction and relaxation and heart rate.
Detailed explanation-3: -Answer and Explanation: Stimulation of the vagus nerve would induce parasympathetic nervous system effects on the heart resulting in decreased heart rate and reduced cardiac contractility.
Detailed explanation-4: -Vagal maneuvers are physical actions that make your vagus nerve act on your heart’s natural pacemaker, slowing down its electrical impulses.
There is 1 question to complete.