Which of the following affect ventricular afterload?
I. Volume and viscosity of blood ejected
II. Peripheral vascular resistance
III. Cross-sectional area of vascular space into which blood is ejected
A) I, II, and III
B) III only
C) I only
D) II only

Question

Quizplus · Accepted Answer

Ventricular afterload is influenced by several factors, including the peripheral vascular resistance (II), which is a major determinant, and the cross-sectional area of the vascular space into which blood is ejected (III), as both directly affect the pressure against which the heart must work to eject blood. The volume and viscosity of blood ejected (I) also play a role, as they can affect the resistance encountered by the ejected blood.

Which of the Following Affect Ventricular Afterload