单词	ductus
释义	ductus /ˈdʌktəs / noun (plural ducti /ˈdʌktʌɪ/) Anatomy A duct: ductus venosus... Near the prostate gland, the ductus is enlarged to form the ampulla; immediately thereafter, it is joined by the duct from the seminal vesicle. The pulmonary artery - which, after birth, will carry blood from the heart to the lungs - instead sends blood directly back to the heart through a fetal blood vessel called the ductus arteriosus. Before birth, a large artery called the ductus arteriosus lets the blood bypass the lungs because the fetus gets its oxygen through the placenta. Origin Mid 17th century: from Latin, literally 'leading'.
随便看	inextricability inextricable inextricably INF inf. in face (or the face) of in facsimile infall infallibility infallible infallibly infamous infamously infamy infancy infangthief infant infanta infante infanticidal infanticide infantile infantile paralysis infantilise infantilism

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