PHARMACOLOGY NBME EXAM QUESTIONS AND ANSWERS. VERIFIED 2025/2026

PHARMACOLOGY NBME EXAM
QUESTIONS AND ANSWERS. VERIFIED
2025/2026.




Types of smooth muscle - ANS vasculature

bladder

reproductive tracts

GI tract

respiratory tract

skin

eye



Types of Muscarinic receptors - ANS M1, M2, M3

QIQ



Location and function of M1 - ANS multiple functions in Nerve endings



Location and function of M2 - ANS decelerates the heart rate



Location and function of M3 - ANS contracts smooth muscle including bladder wall and
bronchi
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, relaxes sphincters (increases GI motility)

increases secretions in glands

vasodilates

contracts the circular and ciliary muscle for near vision accommodation



Location and function of alpha1 - ANS constricts smooth muscle and sphincters



Location and function of alpha2 - ANS decreases transmitter release at nerve endings



Location and function of beta1 - ANS increases heart rate and contractibility in cardiac
muscle

Increases renin secretion in kidney



Location and function of beta2 - ANS relaxes smooth muscle including bronchi and bladder
wall,

increases glucose availability in liver and skeletal muscle



Location and function of beta3 - ANS increases lipolysis in adipose



Tone at rest - ANS most organs are controlled by PNS but cardiac ventricle and vascular
smooth muscle are controlled by SNS



Different effects on receptors for epinephrine and norepinephrine - ANS Epinephrine can act
on B2 receptors along with alpha and beta1

But norepinephrine cannot act on B2



SLUD-BBAM - ANS Salivation
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