The cardiac muscarinic receptors:
A. Are of the M1 subtype
B. Are of the M2 subtype
C. Are selectively blocked by pirenzepine
D. Function through the PIP2 → IP3/DAG pathway
A. Are of the M1 subtype
B. Are of the M2 subtype
C. Are selectively blocked by pirenzepine
D. Function through the PIP2 → IP3/DAG pathway