Question

16 of 123 concepts completed
fill in the blank question
the structure indicated by the letter a in the figure is the
arteriosum.

Explanation:

The structure indicated by letter A in the heart diagram, related to "arteriosum", is the ductus arteriosus (or the remnant called ligamentum arteriosum in adults, but in the context of the embryonic or fetal heart structure, the ductus arteriosus). The blank should be filled with "ductus" as the full term is "ductus arteriosum".

Answer:

ductus