The result of increased preload on cardiac muscle is?
ANSWER: (A) Lengthening of muscle fibreREF: Ganongs 22nd edp. 572Preload is determined by amount of blood reaching the heart; it causes an increase in the muscle fiber length and therefore according to frank starling's law increased force of contraction
Lengthening of muscle fibre
Shortening of muscle fibre
No effect
Variable effect
Heart: Cardiac Muscle