Multiple Choice
Relaxation of the cardiomyocytes is caused mainly by
A) Pumping Ca2+ out of the cytosol by the PMCA
B) Pumping Ca2+ of the cytosol by NCX
C) Removal Ca2+ out of the cytosol by SERCA2a
D) Rem oving ATP from the rigor com plex of myosin
E) Removing Ca2+ from the cytosol by the L-type Ca2+ channel
Correct Answer:
Verified
Correct Answer:
Verified
Q5: Sympathetic stimulation increases all of the following
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
Q11: Cardiac m uscle cannot increase its strength
Q12: Cardiac muscle cannot increase its strength by
Q13: Which of the following are NOT found
Q14: Modestly increasing the frequency of the heart
Q15: “Calcium-induced calcium release” refers to<br>A) Increased I<sub>ca</sub>