In patients with asthma,what role do H 1 -receptors play in the bronchioles?

Histamine produces contraction of the smooth muscle of the intestine and bronchioles by stimulating H 1 -receptors. Contraction of the bronchiolar smooth muscle results in bronchoconstriction, which makes breathing difficult.

In patients with asthma,what role do H 1 -receptors play in the bronchioles?

Histamine produces contraction of the smooth muscle of the intestine and bronchioles by stimulating H 1 -receptors. Contraction of the bronchiolar smooth muscle results in bronchoconstriction, which makes breathing difficult.

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In Patients with Asthma,what Role Do H₁-Receptors Play in the Bronchioles

Question 6

Multiple Choice

In patients with asthma,what role do H₁-receptors play in the bronchioles?

A) Contraction of bronchiolar smooth muscle
B) Dilation of bronchiolar smooth muscle
C) Innervation of bronchiolar smooth muscle
D) Relaxation of bronchiolar smooth muscle

Correct Answer: