Where are β1-adrenergic receptors located?
A) Bronchiolar walls
B) Arteriolar walls
C) Cardiac muscle
D) Glands of the intestinal tract

Question

Quizplus · Accepted Answer

β1-adrenergic receptors are primarily located in the cardiac muscle. They mediate the effects of the neurotransmitter epinephrine, which can increase heart rate and contractility. While some β1-adrenergic receptors may be present in other tissues, the highest concentration is found in the heart.

Where Are β1-Adrenergic Receptors Located