Ned is a 48 year old retired military officer who comes to the emergency room (ER) one evening for chest pain. He tells

[answerhappygod]

Ned is a 48 year old retired military officer who comes to the
emergency room (ER) one evening for chest pain. He tells Dr. Snow
he takes his recommended PO dose of propranolol (inderal) every
morning for migraine but is otherwise totally healthy. He takes no
other medications or supplements.
He took his propranolol today as usual.
Ned's current heart rate is 60 bpm (normal is 60-100) and his BP
is 110/70 (normal is btwn 120/80 and 140/90)
Explain the mechanism(s) by which propranolol reduces BP by
including the specific receptor (s) involved. If propranolol has no
effect on the process described, type N/A
Propranolol affects heart rate by binding which
receptors?