MICROANATOMY

MUSCLE NERVE CARTILAGE BONE

CARDIAC MUSCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the main effect of Vagal cardiac stimulation?
A
negative inotrophic
B
negative chronotrophic
C
positive chronotrophic
D
negative inotrophic
Explanation: 

Detailed explanation-1: -Vagal stimulation decreases left ventricular contractility mainly through negative chronotropic effect.

Detailed explanation-2: -stimulation of vagus and sympathetic, however, produced an even greater cardiac output(measured by aortic blood flow). effected reflexly or by action of higher centers, is ofphysiological benefit.

Detailed explanation-3: -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.