Control of stroke volume and cardiac output

An isotonic contraction is shortening under a constant tension (iso-, same, -tonic, tension). d. F – Resting stretch increases the sensitivity of the contractive filaments to Ca2. Consequently,

transient (Figure 6.6). e. T – Afterload reduces contraction velocity and degree of shortening (Figure 6.4b,c).This is

why a high arterial blood pressure impairs the stroke volume.