Question
Human Anatomy and Physiology Question on Cardiovascular system
Which of the following is not one of the triade effects of adrenaline leading to rise in blood pressure?
A
Stimulation of presynaptic alpha-2 adrenoreceptor leading to increase sympathetic tone
B
An increased heart rate (positive chronotropic action)
C
A direct myocardial stimulation that increases the strength of ventricular contraction
D
Vasoconstriction in many vascular bed specially in precapillary resistance vessels of skin
Answer
Stimulation of presynaptic alpha-2 adrenoreceptor leading to increase sympathetic tone
Explanation
Solution
The correct option is (A):Stimulation of presynaptic alpha-2 adrenoreceptor leading to increase sympathetic tone