Which of the following associations is correct?
A) baroreceptors-sensitivity to dissolved gas concentrations
B) acetylcholine-muscarinic receptors on nodal cells and contractile cells
C) parasympathetic nervous system-cardiac nerves
D) norepinephrine-alpha receptors on nodal cells and contractile cells
E) sympathetic nervous system-vagus nerves

Question

Quizplus · Accepted Answer

Acetylcholine is indeed associated with muscarinic receptors on both nodal cells and contractile cells in the heart, where it plays a crucial role in modulating heart rate and contractility as part of the parasympathetic nervous system's actions.

Which of the Following Associations Is Correct