force of contraction

The forces of contraction are much weaker within the atria as a result.

Their utility results from an increased cardiac output by increasing the force of contraction.

As the heart rate, blood pressure and force of contraction drop, the circulatory system's need for oxygen is reduced.

Effects on the heart include a decreased force of contraction and an increase in heart rate (tachycardia).

Digoxin increases the force of contraction of the heart.

Because the baby's head has already emerged when the shoulder catches, the force of contractions can choke an infant who is not freed quickly.

Reduced force of contraction, due to overloading of the ventricle.

This can occur only when a muscle's maximal force of contraction exceeds the total load on the muscle.

Right now we are in a race between the natural forces of recovery and the self-reinforcing forces of contraction.

Overall, adenosine decreases the heart's rate and force of contraction, which increases blood supply to the cardiac muscle.

"It causes a reduction in the force of contractions, a decrease in the efficiency of circulation."

This outflow causes increased heart rate and force of contraction, as well as bodywide vasoconstriction.

Nitroxyl has also been shown to increase the sensitivity to cardiac myocytes to Ca, which in turn enhances the force of contraction.

A voltage is created when the muscle accelerates and that acceleration is proportion to force of contraction.

This leads to increased contractility (the force of contraction) of the heart without increasing heart energy expenditure.

This law states that "Within physiological limits, the force of contraction is directly proportional to the initial length of the muscle fiber".

Cardiac ventricles contain muscarinic receptors that mediate a decrease in the force of contractions leading to a lower blood pressure.

T increases the heart rate and force of contraction, thus increasing cardiac output, by increasing β-adrenergic receptor levels in myocardium.

Adrenergic nerve terminals are found in the secondary neurons of the sympathetic nervous system, controlling amongst other things heart rate and force of contraction.

An increase in preload results in an increased force of contraction by Starling's law of the heart; this does not require a change in contractility.

The calcium channel blockers known as non-dihydropyridines decrease the force of contraction of the myocardium (muscle of the heart).

(3) The atrial contractions must be gentle enough so that the force of contraction does not exert significant back pressure that would impede venous flow.

Stimulation via sympathetic fibers causes an increase in the SA node rate (thereby increasing the heart rate and force of contraction).

With βAR function restored in a failing heart, the force of contraction increases and the levels of catecholamines and growth factors return to normal.

In a given solvent an equilibrium conformation is eventually achieved when the forces of expansion are balanced by forces of contraction in the molecule.