Which of the following are the most common type of receptors?: (A) M2, (B) M3, (C) M1, (D) M4
Answer is B. M3 receptors are the most common cholinergic receptors present on eye, GI tract, bladder, blood vessels, bronchus, salivary, sweat and lacrimal glands Ref: KDT 7th e pg 101-102