PHYSIOLOGY
MUSCLE RECEPTORS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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stimulate ____ cause tachycardia.
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Alpha 1 receptor
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Alpha 2 receptor
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Beta 1 receptor
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Beta 2 receptor
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Explanation:
Detailed explanation-1: -Targeted activation of the beta-1 receptor in the heart increases sinoatrial (SA) nodal, atrioventricular (AV) nodal, and ventricular muscular firing, thus increasing heart rate and contractility. With these two increased values, the stroke volume and cardiac output will also increase.
Detailed explanation-2: -Adenosine-induced tachycardia is suggested to be mediated via A(2A) receptors; however, the exact mechanism for this effect remains to be understood.
Detailed explanation-3: -Isoproterenol is a beta-1 and beta-2 adrenergic receptor agonist resulting in the following: Increased heart rate. Increased heart contractility. Relaxation of bronchial, gastrointestinal, and uterine smooth muscle.
There is 1 question to complete.