Bronchial Smooth Muscle Is Supplied Primarily by
A) $\alpha$ ₁ Receptors $\alpha$

Multiple Choice

Bronchial smooth muscle is supplied primarily by

A) $\alpha$ ₁ receptors.
B) $\alpha$ ₂ receptors.
C) $\beta$ ₁ receptors.
D) $\beta$ ₂ receptors.