In the fetal heart, the foramen oval 1) is located between the right and left atria 2) is located between the right and

[answerhappygod]

In the fetal heart, the foramen oval
1) is located between the right and left atria
2) is located between the right and left ventricle
3) Is the entry point for coronary anastomses
4 loacted within the ductus arteriosus
B) which one is the diffusion of oxygen in the
alveolus occurs across which of the following cell types?
1)macrophages 2)goblet cells 3)Type 2 alveolar cells
(pneumocytes) 4) Type 1 alveolar cells (pneumocytes