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:D
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