Which term describes the degree of stretch of the ventricular cardiac muscle fibers at the end of diastole?

A preload (stretching) is greater in cardiac muscle fibers before contraction increases its contraction force. This preload is compared to the stretching of an elastic band because the more stretched that band, the more strongly it will return to its resting length. Within certain limits, the more the heart fills with blood during diastole, the greater the contraction force it will exert during diastole. The preload is proportional to the end-diastolic volume. Normally, the higher the end-diastolic volume, the greater the force that the heart will develop in the next contraction.

The return of the wolf to yellowstone national park will probably affect the bird population to some degree, not significantly. while wolves will hunt birds when necessary, they prefer to hunt larger prey. the bird population will most likely only be affected when hunting is scarce for the wolves. birds of prey will also probably not be affected as much as other birds who spend more time on the ground hunting for food as the tend to spend more time in the air or in trees since they do not need to stay on the ground for long due to the nature of the way they hunt.