when is the ductus arteriosis normally renamed the ligamentum arteriosum
Ductus arteriosus In the developing fetus, the ductus arteriosus, also called the ductus Botalli, is a blood vessel connecting the main pulmonary artery to the proximal descending aorta. It allows most of the blood from the right ventricle to bypass the fetus's fluid-filled non-functioning lungs. Upon closure at birth, it becomes the ligamentum arteriosum. There are two other fetal shunts, the ductus venosus and the foramen ovale.
Schlemm's canal Schlemm's canal is a circular lymphatic-like vessel in the eye that collects aqueous humor from the anterior chamber and delivers it into the episcleral blood vessels via aqueous veins.[1][2][3][4] It is named after Friedrich Schlemm (1795â€“1858), a German anatomist.