Question

question 15
factors that affect the strength of myocardial contraction are called
inotropic factors.
chronotropic factors.
ejection factors.
cardiac afterload factors.

Explanation:

• Inotropic factors: These factors directly influence the force of myocardial contraction. Positive inotropes increase the force, while negative inotropes decrease it.
• Chronotropic factors: Affect the heart rate, not the strength of contraction.
• Ejection factors: This is not a standard term for factors affecting myocardial contraction strength.
• Cardiac afterload factors: Relate to the resistance against which the heart pumps, not the inherent strength of contraction.

Answer:

inotropic factors.