Multiple Choice
Sympathetic stimulation increases all of the following EXCEPT
A) Ca2+ entry over the L-type Ca2+ channel
B) Phospholamban phosphorylation
C) Ca2+ release through RyR2
D) Rate of Ca2+ dissociation from TnC
E) Ca2+ exit over the PMCA
Correct Answer:
Verified
Correct Answer:
Verified
Q1: Removal of external Ca<sup>2+</sup> to levels below
Q2: Stretch increases the force of cardiac contraction
Q3: Ca<sup>2+</sup> enters the cardiomyocytes every heart beat
Q4: W hich of the following is NOT
Q6: Cardiac muscle can increase its strength of
Q7: The space between myofibrils in cardiomyocytes is
Q8: The force-frequency relation in the heart (the
Q9: Cardiomyocytes form a functional syncytium by being
Q10: Relaxation of the cardiomyocytes is caused mainly
Q11: Cardiac m uscle cannot increase its strength