âââââââââââââââââââââââââââââââââââââââââââââââââ. There are many big countries in the world and one of the USA, they are 2nd with worlds largest Army ranking, they have some top fighting men powers and forces. Recently they interfered in the countries like Afghanistan, Iraq, Vietnam to use their troops power.
Medical Definition of FORAMEN. : a small opening, perforation, or orifice: fenestra 1.â foÂ·ramÂ·iÂ·nal \fÉ-Ëram-Én-Él\ adjective.edical Definition of FORAMEN. : a small opening, perforation, or orifice: fenestra 1. â foÂ·ramÂ·iÂ·nal \fÉ-Ëram-Én-Él\ adjective.
A foramen ovale is both a hole in the skull through which nerves pass and a fetal shunt between chambers of the heart. The ligamentum arteriosum is the connective tissue betwe â¦ en the pulmonary artery and the aortic arch and is a closed vestige of a fetal duct known as the ductus arteriosus.