What keeps the HCN channels open?
A) G-proteins
B) cAMP
C) ATP
D) Ca2+
Correct Answer:
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Q2: The volume of blood in the ventricles
Q3: What is the resting cardiac rate for
Q4: Norepinephrine and epinephrine open _ channels inducing
Q5: Norepinephrine agonists would increase cardiac output.
Q6: The effect of acetylcholine binding to its
Q8: Sympathetic stimulation of the heart will
A)increase the
Q9: Norepinephrine is released from _ nerves,causing heart
Q10: Mechanisms that affect cardiac rate are said
Q11: Stroke volume is affected by all of
Q12: The cardiac control center of the _
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