At rapid heart rates
A) Systole and diastole shorten equally.
B) Systole stays almost constant, but diastole shortens.
C) Systole lengthens and diastole shortens
D) Diastole lengthens and systole shortens.
E) None of these.
Correct Answer:
Verified
Q63: Increased _ permeability of nodal cells hyperpolarizes
Q64: Vasodilation of coronary arteries is induced by
A)
Q65: If stroke volume is 80 ml and
Q68: The parasympathetic nervous system has little effect
Q69: Which of the following is not associated
Q69: A whistling murmur heard between the second
Q71: During heart failure,
A) The Frank-Starling curve is
Q72: Parasympathetic innervation to the heart:
A) involves the
Q74: If the cardiac output is 4,800 ml/min
Q79: If the EDV were held constant, increased
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents