Question

Which of the following walls separate the right and left atria?

• A. Thin, intra-atrial septum
• B. Thick, intra-atrial septum
• C. Thick, inter-atrial septum
• D. Thin, inter-atrial septum

Answer 1

Answer:

D. Thin, inter-atrial septum

• A thin, muscular wall called as the inter-atrial septum separates the right and the left atria, whereas a thick-walled, inter-ventricular septum separates the left and the right ventricles.